Feat: massive changes to definition of components

This change switches back to the original `ctx<props>` syntax for
commponents. This lets lifetime elision to remove the need to match
exactly which lifetime (props or ctx) gets  carried to the output. As
such, `Props` is currently required to be static. It *is* possible to
loosen this restriction, and will be done in the future, though only
through adding metadata about the props through the Props derive
macro. Implementing the IS_STATIC trait is unsafe, so the derive macro
will do it through some heuristics.

For now, this unlocks sharing vnodes from parents to children, enabling
pass-thru components, fragments, portals, etc.

packages/recoil/examples/familypoc.rs

@@ -12,7 +12,7 @@ struct Todo {
     contents: String,
 }
 
-static App: FC<()> = |ctx, _| {
+static App: FC<()> = |ctx| {
     use_init_recoil_root(ctx, |_| {});
     let todos = use_read(ctx, &TODOS);
 
@@ -28,8 +28,8 @@ struct ChildProps {
     id: Uuid,
 }
 
-static Child: FC<ChildProps> = |ctx, props| {
-    let todo = use_read(ctx, &TODOS).get(&props.id).unwrap();
+static Child: FC<ChildProps> = |ctx| {
+    let todo = use_read(ctx, &TODOS).get(&ctx.id).unwrap();
     // let (todo, set_todo) = use_read_write(ctx, &TODOS);
 
     rsx! { in ctx,