Add tracing to virtual_dom (#1949)

Address #1161; Add tracing to virtual dom:

- Added a dependency on [tracing-fluent-assertions](https://github.com/tobz/tracing-fluent-assertions) for test cases
- Added a test case showing tracing


example log
```
2024-02-28T21:52:25.266474Z TRACE dioxus_core::scope_context: providing context alloc::rc::Rc<dioxus_core::error_boundary::ErrorBoundary> (TypeId { t: 86211292795840746005296084033382154959 }) in app
    at packages/core/src/scope_context.rs:189
    in dioxus_core::virtual_dom::VirtualDom::new

  2024-02-28T21:52:25.266651Z TRACE dioxus_core::scope_context: looking for context generational_box::Owner<generational_box::sync::SyncStorage> (TypeId { t: 16187079142358387300491255137481079601 }) in app
    at packages/core/src/scope_context.rs:106
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266662Z TRACE dioxus_core::scope_context: context generational_box::Owner<generational_box::sync::SyncStorage> (TypeId { t: 16187079142358387300491255137481079601 }) not found
    at packages/core/src/scope_context.rs:140
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266671Z TRACE dioxus_core::scope_context: providing context generational_box::Owner<generational_box::sync::SyncStorage> (TypeId { t: 16187079142358387300491255137481079601 }) in app
    at packages/core/src/scope_context.rs:189
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266713Z TRACE dioxus_core::scope_context: providing context dioxus_signals::reactive_context::ReactiveContext (TypeId { t: 86476382904980360086558195405008306005 }) in app
    at packages/core/src/scope_context.rs:189
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266723Z TRACE dioxus_core::scope_context: looking for context generational_box::Owner (TypeId { t: 87785542931436862771411509553978749471 }) in app
    at packages/core/src/scope_context.rs:106
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266730Z TRACE dioxus_core::scope_context: context generational_box::Owner (TypeId { t: 87785542931436862771411509553978749471 }) not found
    at packages/core/src/scope_context.rs:140
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266769Z TRACE dioxus_core::scope_context: providing context generational_box::Owner (TypeId { t: 87785542931436862771411509553978749471 }) in app
    at packages/core/src/scope_context.rs:189
    in dioxus_core::scope_arena::render with scope: app
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266828Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:60:5:1728", roots: [Element { tag: "div", namespace: None, attrs: [], children: [Element { tag: "button", namespace: None, attrs: [Dynamic { id: 0 }], children: [Text { text: "+" }] }, Element { tag: "button", namespace: None, attrs: [Dynamic { id: 1 }], children: [Text { text: "-" }] }, Element { tag: "ul", namespace: None, attrs: [], children: [Dynamic { id: 0 }] }] }], node_paths: [[0, 2, 0]], attr_paths: [[0, 0], [0, 1]] } }, dynamic_nodes: [Placeholder(VPlaceholder)], dynamic_attrs: [[Attribute { name: "onclick", value: Listener, namespace: None, volatile: false }], [Attribute { name: "onclick", value: Listener, namespace: None, volatile: false }]] }, mount: Cell { value: MountId(0) } }, mount: MountId(0)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::rebuild

  2024-02-28T21:52:25.266896Z TRACE dioxus_core::virtual_dom: Calling 1 listeners
    at packages/core/src/virtual_dom.rs:695
    in dioxus_core::virtual_dom::VirtualDom::handle_bubbling_event with parent: Some(ElementRef { path: ElementPath { path: [0, 0] }, mount: MountId(0) }), name: "click"
    in dioxus_core::virtual_dom::VirtualDom::handle_event with name: "click", data: Any { .. }, element: ElementId(2), bubbles: true

  2024-02-28T21:52:25.266934Z TRACE dioxus_core::virtual_dom: Marking scope ScopeId(0) (app) as dirty
    at packages/core/src/virtual_dom.rs:379
    in dioxus_core::virtual_dom::VirtualDom::process_events

  2024-02-28T21:52:25.266997Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:71:37:2059", roots: [Dynamic { id: 0 }], node_paths: [[0]], attr_paths: [] } }, dynamic_nodes: [Component(VComponent { name: "ChildExample" })], dynamic_attrs: [] }, mount: Cell { value: MountId(1) } }, mount: MountId(1)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::render_immediate

  2024-02-28T21:52:25.267026Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:81:5:2238", roots: [Element { tag: "li", namespace: None, attrs: [Dynamic { id: 0 }], children: [DynamicText { id: 0 }] }], node_paths: [[0, 0]], attr_paths: [[0]] } }, dynamic_nodes: [Text(VText { value: "0" })], dynamic_attrs: [[Attribute { name: "onmouseover", value: Listener, namespace: None, volatile: false }]] }, mount: Cell { value: MountId(2) } }, mount: MountId(2)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::render_immediate

  2024-02-28T21:52:25.267061Z TRACE dioxus_core::virtual_dom: Calling 1 listeners
    at packages/core/src/virtual_dom.rs:695
    in dioxus_core::virtual_dom::VirtualDom::handle_bubbling_event with parent: Some(ElementRef { path: ElementPath { path: [0, 0] }, mount: MountId(0) }), name: "click"
    in dioxus_core::virtual_dom::VirtualDom::handle_event with name: "click", data: Any { .. }, element: ElementId(2), bubbles: true

  2024-02-28T21:52:25.267084Z TRACE dioxus_core::virtual_dom: Marking scope ScopeId(0) (app) as dirty
    at packages/core/src/virtual_dom.rs:379
    in dioxus_core::virtual_dom::VirtualDom::process_events

  2024-02-28T21:52:25.267131Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:71:37:2059", roots: [Dynamic { id: 0 }], node_paths: [[0]], attr_paths: [] } }, dynamic_nodes: [Component(VComponent { name: "ChildExample" })], dynamic_attrs: [] }, mount: Cell { value: MountId(3) } }, mount: MountId(3)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::render_immediate

  2024-02-28T21:52:25.267157Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:81:5:2238", roots: [Element { tag: "li", namespace: None, attrs: [Dynamic { id: 0 }], children: [DynamicText { id: 0 }] }], node_paths: [[0, 0]], attr_paths: [[0]] } }, dynamic_nodes: [Text(VText { value: "1" })], dynamic_attrs: [[Attribute { name: "onmouseover", value: Listener, namespace: None, volatile: false }]] }, mount: Cell { value: MountId(4) } }, mount: MountId(4)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::render_immediate

  2024-02-28T21:52:25.267206Z TRACE dioxus_core::virtual_dom: Calling 1 listeners
    at packages/core/src/virtual_dom.rs:695
    in dioxus_core::virtual_dom::VirtualDom::handle_bubbling_event with parent: Some(ElementRef { path: ElementPath { path: [0, 0] }, mount: MountId(0) }), name: "click"
    in dioxus_core::virtual_dom::VirtualDom::handle_event with name: "click", data: Any { .. }, element: ElementId(2), bubbles: true

  2024-02-28T21:52:25.267229Z TRACE dioxus_core::virtual_dom: Marking scope ScopeId(0) (app) as dirty
    at packages/core/src/virtual_dom.rs:379
    in dioxus_core::virtual_dom::VirtualDom::process_events

  2024-02-28T21:52:25.267274Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:71:37:2059", roots: [Dynamic { id: 0 }], node_paths: [[0]], attr_paths: [] } }, dynamic_nodes: [Component(VComponent { name: "ChildExample" })], dynamic_attrs: [] }, mount: Cell { value: MountId(5) } }, mount: MountId(5)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::render_immediate

  2024-02-28T21:52:25.267297Z  INFO dioxus_core::diff::node: creating template, self: VNode { vnode: VNodeInner { key: None, template: Cell { value: Template { name: "packages/core/tests/tracing.rs:81:5:2238", roots: [Element { tag: "li", namespace: None, attrs: [Dynamic { id: 0 }], children: [DynamicText { id: 0 }] }], node_paths: [[0, 0]], attr_paths: [[0]] } }, dynamic_nodes: [Text(VText { value: "2" })], dynamic_attrs: [[Attribute { name: "onmouseover", value: Listener, namespace: None, volatile: false }]] }, mount: Cell { value: MountId(6) } }, mount: MountId(6)
    at packages/core/src/diff/node.rs:547
    in dioxus_core::virtual_dom::VirtualDom::render_immediate
```

packages/core/tests/tracing.rs

@@ -0,0 +1,82 @@
+use dioxus::html::SerializedHtmlEventConverter;
+use dioxus::prelude::*;
+use dioxus_core::ElementId;
+use std::rc::Rc;
+use tracing_fluent_assertions::{AssertionRegistry, AssertionsLayer};
+use tracing_subscriber::{layer::SubscriberExt, Registry};
+
+#[test]
+fn basic_tracing() {
+    // setup tracing
+    let assertion_registry = AssertionRegistry::default();
+    let base_subscriber = Registry::default();
+    // log to standard out for testing
+    let std_out_log = tracing_subscriber::fmt::layer().pretty();
+    let subscriber = base_subscriber
+        .with(std_out_log)
+        .with(AssertionsLayer::new(&assertion_registry));
+    tracing::subscriber::set_global_default(subscriber).unwrap();
+
+    let new_virtual_dom = assertion_registry
+        .build()
+        .with_name("VirtualDom::new")
+        .was_created()
+        .was_entered_exactly(1)
+        .was_closed()
+        .finalize();
+
+    let edited_virtual_dom = assertion_registry
+        .build()
+        .with_name("VirtualDom::rebuild")
+        .was_created()
+        .was_entered_exactly(1)
+        .was_closed()
+        .finalize();
+
+    set_event_converter(Box::new(SerializedHtmlEventConverter));
+    let mut dom = VirtualDom::new(app);
+
+    dom.rebuild(&mut dioxus_core::NoOpMutations);
+
+    new_virtual_dom.assert();
+    edited_virtual_dom.assert();
+
+    for _ in 0..3 {
+        dom.handle_event(
+            "click",
+            Rc::new(PlatformEventData::new(Box::<SerializedMouseData>::default())),
+            ElementId(2),
+            true,
+        );
+        dom.process_events();
+        _ = dom.render_immediate_to_vec();
+    }
+}
+
+fn app() -> Element {
+    let mut idx = use_signal(|| 0);
+    let onhover = |_| println!("go!");
+
+    rsx! {
+        div {
+            button {
+                onclick: move |_| {
+                    idx += 1;
+                    println!("Clicked");
+                },
+                "+"
+            }
+            button { onclick: move |_| idx -= 1, "-" }
+            ul {
+                {(0..idx()).map(|i| rsx! {
+                    ChildExample { i: i, onhover: onhover }
+                })}
+            }
+        }
+    }
+}
+
+#[component]
+fn ChildExample(i: i32, onhover: EventHandler<MouseEvent>) -> Element {
+    rsx! { li { onmouseover: move |e| onhover.call(e), "{i}" } }
+}