feat: GameObjects are now Connected to a Single IGameManager

Engine.Core/GameManager.cs

@@ -143,6 +143,8 @@ public class GameManager : IGameManager
 
     private void Register(IGameObject gameObject)
     {
+        gameObject.Assign(this);
+
         gameObject.OnFinalized += OnGameObjectFinalize;
 
         _gameObjects.Add(gameObject);