Map & Grid Entities (#493)

* Client & Server load with new scene hierarchy.

* Engine Update.

Content.Client/GameObjects/Components/SubFloorHideComponent.cs

@@ -40,6 +40,9 @@ namespace Content.Client.GameObjects.Components
         {
             base.Shutdown();
 
+            if(Owner.Transform.Running == false)
+                return;
+
             _snapGridComponent.OnPositionChanged -= SnapGridOnPositionChanged;
             Owner.EntityManager.EventBus.RaiseEvent(Owner, new SubFloorHideDirtyEvent());
         }

Content.Server/GameObjects/Components/Power/PowerNodeComponent.cs

@@ -37,9 +37,9 @@ namespace Content.Server.GameObjects.Components.Power
         /// </summary>
         public event EventHandler<PowernetEventArgs> OnPowernetRegenerate;
 
-        public override void Initialize()
+        protected override void Startup()
         {
-            base.Initialize();
+            base.Startup();
 
             TryCreatePowernetConnection();
         }

Content.Server/GameObjects/Components/Power/PowerTransferComponent.cs

@@ -27,9 +27,9 @@ namespace Content.Server.GameObjects.Components.Power
         [ViewVariables]
         public bool Regenerating { get; set; } = false;
 
-        public override void Initialize()
+        protected override void Startup()
         {
-            base.Initialize();
+            base.Startup();
 
             if (Parent == null)
             {