wip: drag and drop support

examples/filedragdrop.rs

@@ -0,0 +1,18 @@
+use dioxus::prelude::*;
+
+fn main() {
+    dioxus::desktop::launch_with_props(app, (), |c| {
+        c.with_file_drop_handler(|w, e| {
+            println!("{:?}", e);
+            false
+        })
+    });
+}
+
+fn app(cx: Scope) -> Element {
+    cx.render(rsx!(
+        div {
+            h1 { "drag an file here" }
+        }
+    ))
+}