Use Time.captureFramerate to ensure synchrony between update and fixed update (#341)

unity-environment/Assets/ML-Agents/Scripts/Academy.cs

             Time.timeScale = trainingConfiguration.timeScale;
             Application.targetFrameRate = trainingConfiguration.targetFrameRate;
             QualitySettings.vSyncCount = 0;
+            Time.captureFramerate = 60;
             Monitor.SetActive(false);
         }
         else
             Time.timeScale = inferenceConfiguration.timeScale;
             Application.targetFrameRate = inferenceConfiguration.targetFrameRate;
+            Time.captureFramerate = 60;
             Monitor.SetActive(true);
         }
     }