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/Body/BodyComponent.cs

@@ -48,7 +48,7 @@ namespace Content.Server.Body
             part.Owner.RandomOffset(0.25f);
         }
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
 

Content.Server/Body/Circulatory/BloodstreamComponent.cs

@@ -41,7 +41,7 @@ namespace Content.Server.Body.Circulatory
 
         [ViewVariables] public SolutionContainerComponent Solution => _internalSolution;
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
 

Content.Server/Body/Mechanism/MechanismComponent.cs

@@ -24,7 +24,7 @@ namespace Content.Server.Body.Mechanism
     {
         [ViewVariables] private BoundUserInterface? UserInterface => Owner.GetUIOrNull(SurgeryUIKey.Key);
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
 

Content.Server/Body/Part/BodyPartComponent.cs

@@ -56,7 +56,7 @@ namespace Content.Server.Body.Part
             mechanism.Owner.RandomOffset(0.25f);
         }
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
 

Content.Server/Body/Scanner/BodyScannerComponent.cs

@@ -39,7 +39,7 @@ namespace Content.Server.Body.Scanner
             UserInterface?.Open(session);
         }
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();
 

Content.Server/Body/Surgery/Components/SurgeryToolComponent.cs

@@ -145,7 +145,7 @@ namespace Content.Server.Body.Surgery.Components
             }
         }
 
-        public override void Initialize()
+        protected override void Initialize()
         {
             base.Initialize();