Start revamping the player UI

 * introduce ConstraintLayout as dependency
 * remove cardview at playback controls
 * replace next and previous drawables with skip drawables to match action
 * line up all buttons: shuffle - previous - play/pause - next - repeat
 * ripple side buttons (the buttons next to play/pause)
 * remove progress from play/pause button and decrease "ring" thickness
 * remove blinking current time while music is paused

Change-Id: I224a6d293cd0f19e38b8355c7f47790f651125a3
Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
Signed-off-by: Joey <joey@lineageos.org>