Add observation to agent

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

   m_Name: 
   m_EditorClassIdentifier: 
   m_BrainParameters:
-    VectorObservationSize: 4
+    VectorObservationSize: 5
     NumStackedVectorObservations: 1
     VectorActionSize: 03000000030000000300000002000000
     VectorActionDescriptions: []
   area: {fileID: 7136043490825593518}
   turnSpeed: 300
   moveSpeed: 2
+  cooldownTime: 0.5
   normalMaterial: {fileID: 2100000, guid: c9fa44c2c3f8ce74ca39a3355ea42631, type: 2}
   badMaterial: {fileID: 2100000, guid: b0da1813c36914e678ba57f2790424e1, type: 2}
   goodMaterial: {fileID: 2100000, guid: c67450f290f3e4897bc40276a619e78d, type: 2}
   m_Name: 
   m_EditorClassIdentifier: 
   m_BrainParameters:
-    VectorObservationSize: 4
+    VectorObservationSize: 5
     NumStackedVectorObservations: 1
     VectorActionSize: 03000000030000000300000002000000
     VectorActionDescriptions: []
   area: {fileID: 7136043490825593518}
   turnSpeed: 300
   moveSpeed: 2
+  cooldownTime: 0.5
   normalMaterial: {fileID: 2100000, guid: c9fa44c2c3f8ce74ca39a3355ea42631, type: 2}
   badMaterial: {fileID: 2100000, guid: b0da1813c36914e678ba57f2790424e1, type: 2}
   goodMaterial: {fileID: 2100000, guid: c67450f290f3e4897bc40276a619e78d, type: 2}
   m_Name: 
   m_EditorClassIdentifier: 
   m_BrainParameters:
-    VectorObservationSize: 4
+    VectorObservationSize: 5
     NumStackedVectorObservations: 1
     VectorActionSize: 03000000030000000300000002000000
     VectorActionDescriptions: []
   area: {fileID: 7136043490825593518}
   turnSpeed: 300
   moveSpeed: 2
+  cooldownTime: 0.5
   normalMaterial: {fileID: 2100000, guid: c9fa44c2c3f8ce74ca39a3355ea42631, type: 2}
   badMaterial: {fileID: 2100000, guid: b0da1813c36914e678ba57f2790424e1, type: 2}
   goodMaterial: {fileID: 2100000, guid: c67450f290f3e4897bc40276a619e78d, type: 2}
   m_Name: 
   m_EditorClassIdentifier: 
   m_BrainParameters:
-    VectorObservationSize: 4
+    VectorObservationSize: 5
     NumStackedVectorObservations: 1
     VectorActionSize: 03000000030000000300000002000000
     VectorActionDescriptions: []
   area: {fileID: 2458225129383339183}
   turnSpeed: 300
   moveSpeed: 2
+  cooldownTime: 0.5
   normalMaterial: {fileID: 2100000, guid: b0da1813c36914e678ba57f2790424e1, type: 2}
   badMaterial: {fileID: 2100000, guid: c9fa44c2c3f8ce74ca39a3355ea42631, type: 2}
   goodMaterial: {fileID: 2100000, guid: c67450f290f3e4897bc40276a619e78d, type: 2}
   m_Name: 
   m_EditorClassIdentifier: 
   m_BrainParameters:
-    VectorObservationSize: 4
+    VectorObservationSize: 5
     NumStackedVectorObservations: 1
     VectorActionSize: 03000000030000000300000002000000
     VectorActionDescriptions: []
   area: {fileID: 2458225129383339183}
   turnSpeed: 300
   moveSpeed: 2
+  cooldownTime: 0.5
   normalMaterial: {fileID: 2100000, guid: b0da1813c36914e678ba57f2790424e1, type: 2}
   badMaterial: {fileID: 2100000, guid: c9fa44c2c3f8ce74ca39a3355ea42631, type: 2}
   goodMaterial: {fileID: 2100000, guid: c67450f290f3e4897bc40276a619e78d, type: 2}
   m_Name: 
   m_EditorClassIdentifier: 
   m_BrainParameters:
-    VectorObservationSize: 4
+    VectorObservationSize: 5
     NumStackedVectorObservations: 1
     VectorActionSize: 03000000030000000300000002000000
     VectorActionDescriptions: []
   area: {fileID: 2458225129383339183}
   turnSpeed: 300
   moveSpeed: 2
+  cooldownTime: 0.5
   normalMaterial: {fileID: 2100000, guid: b0da1813c36914e678ba57f2790424e1, type: 2}
   badMaterial: {fileID: 2100000, guid: c9fa44c2c3f8ce74ca39a3355ea42631, type: 2}
   goodMaterial: {fileID: 2100000, guid: c67450f290f3e4897bc40276a619e78d, type: 2}