Engine Entity Anchoring Changes (#4195)

* Converted all SnapGridPositionChangedEvent subscriptions to AnchorStateChangedEvent.

* Fixes power tests with new anchored requirements.

* Moved AnchorableComponent into construction.
AnchorableComponent now uses Transform.Anchored.

* Fixed bug with nodes, power works again.

* Adds lifetime stages to Component.

* Update Engine to v0.4.70.

Content.Client/Window/WindowComponent.cs

@@ -21,7 +21,7 @@ namespace Content.Client.Window
 
         private ISpriteComponent? _sprite;
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
 
@@ -64,7 +64,7 @@ namespace Content.Client.Window
             }
         }
 
-        public void SnapGridOnPositionChanged()
+        public void AnchorStateChanged()
         {
             Owner.EntityManager.EventBus.RaiseEvent(EventSource.Local, new WindowSmoothDirtyEvent(Owner));
         }