This commit adds the Media Control Service, and a dummy media player,
from the topic-le-audio branch. This is a part of the upmerge of the
le-audio media control files.
This service has been developed and maintained over a couple of years
now, and is mature. During the development it has passed both
IOP-testing and PTS qualification testing.
The commit is a pure copy of the files and content in the
topic-le-audio branch, with the following exceptions:
- files are in bluetooth/audio instead of bluetooth/host/audio, with
some include paths updated as a consequence
- as a consequence, CMake files and Kconfig files updates are done in
other locations
- copyrights have been updated
Signed-off-by: Asbjørn Sæbø <asbjorn.sabo@nordicsemi.no>
