public static void onChange(Actor actor, Runnable runnable) {
        actor.addListener(new ChangeListener() {
            @Override
            public void changed(ChangeEvent event, Actor actor) {
                runnable.run();
            }
        });
    }
Extracts a zip entry (file entry)
@param zipIn
@param filePath
@throws IOException
core/src/com/ray3k/skincomposer/utils/Utils.java