AnimEvent: add details to the log output for onStop()

jme3-core/src/main/java/com/jme3/cinematic/events/AnimEvent.java

@@ -162,7 +162,8 @@ public class AnimEvent extends AbstractCinematicEvent {
      */
     @Override
     public void onStop() {
-        logger.log(Level.INFO, "");
+        logger.log(Level.INFO, "layer={0} action={1}",
+                new Object[]{layerName, actionName});
 
         Object layerManager = composer.getLayerManager(layerName);
         if (layerManager == this) {