Add toString() method for TouchEvent

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10896 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/input/event/TouchEvent.java

@@ -227,4 +227,11 @@ public class TouchEvent extends InputEvent {
         this.scaleSpanInProgress = scaleSpanInProgress;
     }
 
+    @Override
+    public String toString(){
+        return "TouchEvent(PointerId="+pointerId+", Type="+type+
+                ", X="+posX+", Y="+posY+", DX="+deltaX+", DY="+deltaY+
+                ", ScaleSpan="+scaleSpan+", dScaleSpan="+deltaScaleSpan+")";
+    }
+    
 }