title: Troubles using CGPathContainsPoint SWIFT
body: <p>I need to check if a CGPoint is inside a SKSpriteNode.</p>
  
  <p>After a little research, CGPathContainsPoint seems appropriated for my purpose.</p>
  
  <pre><code>if CGPathContainsPoint(my_sprite_path, nil, my_point, false) {
  
   }
  </code></pre>
  
  <p>But Xcode alerts me: <em>Use of unresolved identifier CGPathContainsPoint</em></p>
  
  <p>I tried to import : </p>
  
  <pre><code>import UIKit
  import CoreGraphics
  </code></pre>
  
  <p>I'm using Xcode 8.0 beta 6.</p>
  
  <p>Did I miss anything?</p>