Fix volume copy from primary to primary in simulator

Author: harikrishna-patnala

plugins/hypervisors/simulator/src/main/java/com/cloud/resource/SimulatorStorageProcessor.java

@@ -270,7 +270,11 @@ public Answer forgetObject(ForgetObjectCmd cmd) {
 
     @Override
     public Answer copyVolumeFromPrimaryToPrimary(CopyCommand cmd) {
-        return null;
+        VolumeObjectTO volume = new VolumeObjectTO();
+        volume.setPath(UUID.randomUUID().toString());
+        volume.setSize(100);
+        volume.setFormat(Storage.ImageFormat.RAW);
+        return new CopyCmdAnswer(volume);
     }
 
     @Override