feat(android): implement asset folder playback (#3733)

* fix(ts): onPlaybackRateChangeData was not correctly typed

* fix: ensure tracks are well displayed in the sample

* feat(android): implement playback from asset folder

* chore(android): fix linter

* chore: move sample mp4 from package assets to exemple assets

examples/basic/src/VideoPlayer.tsx

@@ -170,6 +170,10 @@ class VideoPlayer extends Component {
       description: 'Another live sample',
       uri: 'https://live.forstreet.cl/live/livestream.m3u8',
     },
+    {
+      description: 'asset file',
+      uri: 'asset:///broadchurch.mp4',
+    },
     {
       description: '(dash) sintel subtitles',
       uri: 'https://bitmovin-a.akamaihd.net/content/sintel/sintel.mpd',