Modify PlayService

1 Add SurfaceView to play video resource.
2 Remove mIsURIChange from PlayService. Let user do controlling thing.
3 Modify IPlayService.aidl remove usless arg in IPlay();

Signed-off-by: FuXi Chu <fuxi.chu@archermind.com>
Modify Sample Player

Using center_vertical to place surfaceview

Signed-off-by: FuXi Chu <fuxi.chu@archermind.com>
Import ViewPlayerActivity from AShareRender

Signed-off-by: FuXi Chu <fuxi.chu@archermind.com>