reduce show goal mat to .5

UnitySDK/Assets/ML-Agents/Examples/WallJump/Scenes/WallJump.unity

   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
-  m_IsActive: 1
+  m_IsActive: 0
 --- !u!23 &252453052
 MeshRenderer:
   m_ObjectHideFlags: 0

UnitySDK/Assets/ML-Agents/Examples/WallJump/Scripts/WallJumpAgent.cs

     IEnumerator GoalScoredSwapGroundMaterial(Material mat, float time)
     {
         m_GroundRenderer.material = mat;
-        yield return new WaitForSeconds(time); //wait for 2 sec
+        yield return new WaitForSeconds(time);
         m_GroundRenderer.material = m_GroundMaterial;
     }
 
         {
             SetReward(1f);
             StartCoroutine(
-                GoalScoredSwapGroundMaterial(m_Academy.goalScoredMaterial, 2));
+                GoalScoredSwapGroundMaterial(m_Academy.goalScoredMaterial, .5f));
             Done();
         }
     }
     {
         m_currentVelMag = m_AgentRb.velocity.magnitude;
         fuTimer++;
-        if (m_Configuration != -1)
-        {
-            ConfigureAgent(m_Configuration);
-            m_Configuration = -1;
-        }
+        // if (m_Configuration != -1)
+        // {
+        //     ConfigureAgent(m_Configuration);
+        //     m_Configuration = -1;
+        // }
     }
 
     /// <summary>