Add team manager to collab pushblock

Project/Assets/ML-Agents/Examples/PushBlock/Scripts/PushBlockEnvController.cs

 
     private int m_NumberOfRemainingBlocks;
 
+    private PushBlockTeamManager m_TeamManager;
+
     void Start()
     {
 
             item.StartingRot = item.T.transform.rotation;
             item.Rb = item.T.GetComponent<Rigidbody>();
         }
+        // Initialize TeamManager
+        m_TeamManager = new PushBlockTeamManager();
+            item.Agent.SetTeamManager(m_TeamManager);
         }
 
         ResetScene();