- make TextureAssetKey flipY option a proper bean property

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10206 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/core/com/jme3/asset/TextureKey.java

@@ -95,6 +95,10 @@ public class TextureKey extends AssetKey<Texture> {
         return flipY;
     }
 
+    public void setFlipY(boolean flipY) {
+        this.flipY = flipY;
+    }
+    
     public int getAnisotropy() {
         return anisotropy;
     }