title: Pinch zoom in Cocos2d v3.0.0
body: <p>I would like to implement Pinch Zoom on a Scene in cocos2d version 3.0.</p>
  <p>I tried using &quot;CCLayerPanZoom&quot; in cocos2d extensions, but no luck, available at below link only supports 2.x versions.
  <a href="https://github.com/cocos2d/cocos2d-iphone-extensions" rel="nofollow noreferrer">https://github.com/cocos2d/cocos2d-iphone-extensions</a></p>
  <p>Also tried using &quot;CCPanZoomController&quot; at below link no luck (supports only 2.x versions).
  <a href="https://github.com/robertblackwood/CCPanZoomController/tree/master/CCPanZoomController" rel="nofollow noreferrer">https://github.com/robertblackwood/CCPanZoomController/tree/master/CCPanZoomController</a></p>