[Android] Convert Strings util to kotlin

[Habib Kazemi]

vlc-android | branch: master | Habib Kazemi <kazemihabib1996 at gmail.com> | Sat Aug 11 11:09:13 2018 +0430| [fe905a2af5cdd25a8233678306e162d759d7c229] | committer: Geoffrey Métais

Convert Strings util to kotlin

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

> https://code.videolan.org/videolan/vlc-android/commit/fe905a2af5cdd25a8233678306e162d759d7c229
---

 .../src/org/videolan/vlc/ExternalMonitor.java      |  2 +-
 .../src/org/videolan/vlc/VLCApplication.java       |  2 +-
 .../src/org/videolan/vlc/gui/InfoActivity.java     |  2 +-
 .../vlc/gui/browser/FileBrowserFragment.java       |  2 +-
 .../vlc/gui/browser/FilePickerFragment.java        |  4 +-
 .../videolan/vlc/gui/dialogs/AdvOptionsDialog.java |  2 +-
 .../vlc/gui/dialogs/PlaybackSpeedDialog.java       |  2 +-
 .../org/videolan/vlc/gui/helpers/BitmapCache.java  |  2 +-
 .../videolan/vlc/gui/video/MediaInfoAdapter.java   |  2 +-
 .../vlc/gui/video/VideoPlayerActivity.java         |  2 +-
 .../src/org/videolan/vlc/util/AndroidDevices.java  |  6 +-
 .../org/videolan/vlc/util/CustomDirectories.java   |  2 +-
 .../src/org/videolan/vlc/util/FileUtils.java       |  2 +-
 vlc-android/src/org/videolan/vlc/util/Strings.java | 93 ----------------------
 vlc-android/src/org/videolan/vlc/util/Strings.kt   | 70 ++++++++++++++++
 .../videolan/vlc/widget/VLCAppWidgetProvider.java  | 10 +--
 16 files changed, 91 insertions(+), 114 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/fe905a2af5cdd25a8233678306e162d759d7c229