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.Server/Light/Components/LightReplacerComponent.cs

@@ -36,7 +36,7 @@ namespace Content.Server.Light.Components
         // bulbs that were inserted inside light replacer
         [ViewVariables] private IContainer _insertedBulbs = default!;
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
             _insertedBulbs = ContainerHelpers.EnsureContainer<Container>(Owner, "light_replacer_storage");