Add max-step to agents in BananaVisual (#1119)

unity-environment/Assets/ML-Agents/Examples/BananaCollectors/Prefabs/VisualRLArea.prefab

   agentParameters:
     agentCameras:
     - {fileID: 20214279307138674}
-    maxStep: 0
+    maxStep: 5000
-    numberOfActionsBetweenDecisions: 4
+    numberOfActionsBetweenDecisions: 5
   myAcademyObj: {fileID: 0}
   area: {fileID: 1575621625717122}
   turnSpeed: 300
   agentParameters:
     agentCameras:
     - {fileID: 20216502261607616}
-    maxStep: 0
+    maxStep: 5000
-    numberOfActionsBetweenDecisions: 4
+    numberOfActionsBetweenDecisions: 5
   myAcademyObj: {fileID: 0}
   area: {fileID: 1575621625717122}
   turnSpeed: 300
   agentParameters:
     agentCameras:
     - {fileID: 20704335789641980}
-    maxStep: 0
+    maxStep: 5000
-    numberOfActionsBetweenDecisions: 4
+    numberOfActionsBetweenDecisions: 5
   myAcademyObj: {fileID: 0}
   area: {fileID: 1575621625717122}
   turnSpeed: 300
   agentParameters:
     agentCameras:
     - {fileID: 20130538700979288}
-    maxStep: 0
+    maxStep: 5000
-    numberOfActionsBetweenDecisions: 4
+    numberOfActionsBetweenDecisions: 5
   myAcademyObj: {fileID: 0}
   area: {fileID: 1575621625717122}
   turnSpeed: 300

unity-environment/Assets/ML-Agents/Examples/BananaCollectors/Scenes/VisualBanana.unity

       propertyPath: m_RootOrder
       value: 4
       objectReference: {fileID: 0}
-    - target: {fileID: 114813974235827884, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114395305755641442, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114813974235827884, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114395305755641442, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114661537450162482, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114863868205103286, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114661537450162482, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114863868205103286, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114863868205103286, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114661537450162482, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114863868205103286, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114661537450162482, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114395305755641442, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114813974235827884, guid: 79d09bf6cbfa64f55a572755f594652f,
-    - target: {fileID: 114395305755641442, guid: 79d09bf6cbfa64f55a572755f594652f,
+    - target: {fileID: 114813974235827884, guid: 79d09bf6cbfa64f55a572755f594652f,
         type: 2}
       propertyPath: myAcademyObj
       value: