[Android] Update media session browser and playback service to invoke artwork content provider

[Robert Stone]

vlc-android | branch: master | Robert Stone <rhstone at gmail.com> | Sun May  9 21:48:42 2021 -0700| [a79f9982f2a10e59f21c022c0b350e5975420c2c] | committer: Nicolas Pomepuy

Update media session browser and playback service to invoke artwork content provider

> https://code.videolan.org/videolan/vlc-android/commit/a79f9982f2a10e59f21c022c0b350e5975420c2c
---

 .../src/org/videolan/vlc/PlaybackService.kt        |  44 ++++--
 .../src/org/videolan/vlc/gui/helpers/AudioUtil.kt  |  17 +++
 .../org/videolan/vlc/media/MediaSessionBrowser.kt  | 152 +++++++++++----------
 .../src/org/videolan/vlc/media/PlaylistManager.kt  |   5 +-
 .../org/videolan/vlc/util/ThumbnailsProvider.kt    |   6 +-
 5 files changed, 138 insertions(+), 86 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/a79f9982f2a10e59f21c022c0b350e5975420c2c