Fix inference CI timeouts in Match3 and VisualFoodCollector (#5298)

* add ModelOverrider to VisualFoodCollector

* use fast stepping when graphics disabled

* match3 - check ModelOverrider instead of graphics

* comments

Project/Assets/ML-Agents/Examples/FoodCollector/Prefabs/VisualFoodCollectorArea.prefab

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Project/Assets/ML-Agents/Examples/Match3/Scripts/Match3Agent.cs

         State m_CurrentState = State.WaitForMove;
         float m_TimeUntilMove;
         private int m_MovesMade;
+        private ModelOverrider m_ModelOverrider;
+            m_ModelOverrider = GetComponent<ModelOverrider>();
         }
 
         public override void OnEpisodeBegin()
 
         private void FixedUpdate()
         {
-            if (Academy.Instance.IsCommunicatorOn)
+            // Make a move every step if we're training, or we're overriding models in CI.
+            var useFast = Academy.Instance.IsCommunicatorOn || (m_ModelOverrider != null && m_ModelOverrider.HasOverrides);
+            if (useFast)
             {
                 FastUpdate();
             }

Project/Assets/ML-Agents/Examples/SharedAssets/Scripts/ModelOverrider.cs

         // The attached Agent
         Agent m_Agent;
 
+        // Whether or not the commandline args have already been processed.
+        // Used to make sure that HasOverrides doesn't spam the logs if it's called multiple times.
+        private bool m_HaveProcessedCommandLine;
+
         string m_BehaviorNameOverrideDirectory;
 
         private List<string> m_OverrideExtensions = new List<string>();
 
         /// <summary>
         /// Get the asset path to use from the commandline arguments.
+        /// Can be called multiple times - if m_HaveProcessedCommandLine is set, will have no effect.
+            if (m_HaveProcessedCommandLine)
+            {
+                return;
+            }
             var maxEpisodes = 0;
             var timeoutSeconds = 0;
 
             {
                 m_Deadline = DateTime.Now + TimeSpan.FromSeconds(timeoutSeconds);
                 Debug.Log($"setting deadline to {timeoutSeconds} from now.");
+            }
-            }
+            m_HaveProcessedCommandLine = true;
         }
 
         void OnEnable()