[Android] Add Album & Artist sort

[David Papazian]

vlc-android | branch: master | David Papazian <david.papazian at metz.supelec.fr> | Mon Jul 24 11:32:08 2017 +0200| [31e0cb20b5dcdb09ad1d7ce27b391475bc9ad1b5] | committer: Geoffrey Métais

Add Album & Artist sort

Signed-off-by: Geoffrey Métais <geoffrey.metais at gmail.com>

> https://code.videolan.org/videolan/vlc-android/commit/31e0cb20b5dcdb09ad1d7ce27b391475bc9ad1b5
---

 vlc-android/res/menu/activity_option.xml           |  10 ++
 vlc-android/res/values/strings.xml                 |   9 +-
 .../src/org/videolan/vlc/gui/MainActivity.java     |   2 +-
 .../vlc/gui/audio/AudioAlbumsSongsFragment.java    |  26 ++---
 .../vlc/gui/audio/AudioBrowserAdapter.java         | 113 +++++++++++++++------
 .../vlc/gui/audio/AudioBrowserFragment.java        |  12 ---
 .../videolan/vlc/gui/audio/BaseAudioBrowser.java   |  29 +++---
 .../videolan/vlc/gui/browser/SortableFragment.java |  12 ++-
 .../src/org/videolan/vlc/gui/helpers/UiTools.java  |  70 +++++++++++++
 .../videolan/vlc/gui/video/VideoGridFragment.java  |   2 +
 .../vlc/util/MediaLibraryItemComparator.java       | 105 +++++++++++++------
 vlc-android/src/org/videolan/vlc/util/Util.java    |  32 +-----
 12 files changed, 287 insertions(+), 135 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/31e0cb20b5dcdb09ad1d7ce27b391475bc9ad1b5