title: Ionic camera plugin only crops images in 1:1 (square) images
body: <p>I am making an ionic app that requires me to crop images in 16:9 aspect ratio.
  So far i can not find any plugin. </p>
  
  <p>I am using ionic camera plugin with the following code </p>
  
  <pre><code>var opt : CameraOptions = {
          quality: 20,
          targetWidth:  1920,
          targetHeight: 1080,
          allowEdit: true,
          destinationType: this.camera.DestinationType.DATA_URL,
          sourceType: this.camera.PictureSourceType.PHOTOLIBRARY  ,
          encodingType: this.camera.EncodingType.JPEG,
          mediaType: this.camera.MediaType.PICTURE
      };
  </code></pre>
  
  <p>it works fine if the target height and target width are same. but ignores the  target height and target width if they are not same. 
  i want the cropped in rectangle shape with 16:9 ratio. is this even available in ionic ?</p>