Add IllustrationVideoView to setup wizard library

- Upstreamed setup wizard's IllustrationVideoView to SuwLib
- Modified the view to automatically listen to window focus changes
  to play and pause the video
- The view will now release the MediaPlayer as well in
  onSurfaceTextureDestroyed
- Added checkstyle_suppression XML so it will ignore the
  "__constructor__" magic method name from the style check.

Bug: 36584499
Test: ./gradlew connectedAndroidTest test
Change-Id: Id045467d5d544a5f54464a0c938d3d56e758e455