Add #[reflect(Component)] for AncestorMarker and register the type (

#461)

# Objective

Fixes #460.

## Solution

Add `#[reflect(Component)]` for `AncestorMarker` and register the type.

src/sync/ancestor_marker.rs

@@ -98,11 +98,19 @@ impl<C: Component> Plugin for AncestorMarkerPlugin<C> {
 /// A marker component that marks an entity as an ancestor of an entity with the given component `C`.
 ///
 /// This is added and removed automatically by the [`AncestorMarkerPlugin`] if it is enabled.
-#[derive(Component, Reflect)]
+#[derive(Component, Copy, Reflect)]
+#[reflect(Component, Default)]
 pub struct AncestorMarker<C: Component> {
+    #[reflect(ignore)]
     _phantom: PhantomData<C>,
 }
 
+impl<C: Component> Clone for AncestorMarker<C> {
+    fn clone(&self) -> Self {
+        Self::default()
+    }
+}
+
 impl<C: Component> Default for AncestorMarker<C> {
     fn default() -> Self {
         Self {

src/type_registration.rs

@@ -1,6 +1,6 @@
 use crate::{
     prelude::*,
-    sync::{PreviousGlobalTransform, SyncConfig},
+    sync::{ancestor_marker::AncestorMarker, PreviousGlobalTransform, SyncConfig},
 };
 use bevy::prelude::*;
 use broad_phase::AabbIntersections;
@@ -68,6 +68,8 @@ impl Plugin for PhysicsTypeRegistrationPlugin {
             .register_type::<ColliderConstructor>()
             .register_type::<ColliderConstructorHierarchy>()
             .register_type::<ColliderConstructorHierarchyConfig>()
+            .register_type::<AncestorMarker<RigidBody>>()
+            .register_type::<AncestorMarker<ColliderMarker>>()
             .register_type::<RayCaster>()
             .register_type::<ShapeCaster>()
             .register_type::<DistanceJoint>()