title: How to apply cameraViewTransform to a UIImagePickerController originalImage
body: <p>I made my custom UIImagePickerController camera controls (flash, front/rear, zoom, takepicture and others).</p>
  
  <p>My issue is related to zooming.
  By clicking plus and minus buttons, I change the imagePicker.cameraViewTransform with a scale. All right here.</p>
  
  <p>When the user pick the photos, in the delegate method didFinishPickingMediaWithInfo, I get the originalImage.
  That UIImage, obviously, does not have the transform applied.</p>
  
  <p>My question is:
  HOW DO I GET THE IMAGE SCALED (BY APPLYING THAT TRANSFORM, WHICH I HAVE) ?</p>