Update NN models for all example scenes (v0.11.0)

This change updates all of the .nn models, and uses the new output
filenames (e.g. 3DBallLearning.nn becomes 3dBall.nn).

Author: Jonathan Harper

UnitySDK/Assets/ML-Agents/Examples/3DBall/Prefabs/3DBall.prefab

@@ -615,7 +615,7 @@ MonoBehaviour:
     vectorActionSize: 02000000
     vectorActionDescriptions: []
     vectorActionSpaceType: 1
-  m_Model: {fileID: 11400000, guid: a0e8d1fda5a6f41be955d2b30479c2a1, type: 3}
+  m_Model: {fileID: 11400000, guid: 20a7b83be6b0c493d9271c65c897eb9b, type: 3}
   m_InferenceDevice: 0
   m_UseHeuristic: 0
   m_BehaviorName: 3DBall

UnitySDK/Assets/ML-Agents/Examples/3DBall/Prefabs/3DBallHardNew.prefab

@@ -613,10 +613,9 @@ MonoBehaviour:
     vectorObservationSize: 5
     numStackedVectorObservations: 9
     vectorActionSize: 02000000
-    cameraResolutions: []
     vectorActionDescriptions: []
     vectorActionSpaceType: 1
-  m_Model: {fileID: 11400000, guid: cee7d20369b814d549573de7e76c4a81, type: 3}
+  m_Model: {fileID: 11400000, guid: 27d49984757ed46b181090a532ef48e5, type: 3}
   m_InferenceDevice: 0
   m_UseHeuristic: 0
   m_BehaviorName: 3DBallHard
@@ -632,8 +631,6 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   agentParameters:
-    agentCameras: []
-    agentRenderTextures: []
     maxStep: 5000
     resetOnDone: 1
     onDemandDecision: 0