* Add 1080p, 720p, and 480p capture qualities.
* Minor improvements for picture/video sizing.
- Minor refactoring for getting supported sizes (DRY).
- Add explicit pictureSize setting for 480p/720p/1080p in still/picture mode.
* Use util.Size objects for 480p/720p/1080p sizing.
- Note using Camera.Size objects would require a camera instance prior to creating the
size objects, which would be manageable but not too clean.
* Remove 480p for iOS; 16:9/HD aspect ratio for Android 480p
- iOS only has a 640x480 480p-like AVCaptureSessionPreset, which is not the typical 16:9/HD aspect ratio
desired. Removing this option as a result of this.
- Android 480p updated to use 16:9/HD aspect ratio.
* Add notes for (in)exact sizing for 1080p/720p/480p
* Re-add 480p on iOS, more notes on resolutions.
- Add notes on non-HD-aspect-ratio for iOS 480p.
- Add more explanation of variable resolution/sizes, especially for 480p on Android.
* Use custom Resolution class to hold 480p/720p/1080p resolution sizes
- Mistakenly used util.Size class before, which was not added until Android API level 21 (current
min is 16).
