It now works in non embed mode.
It follows multiple vouts (not perfect yet).

It will be used to properly attach/detach the fullscreen controller
independantly of embed vout.

No useless wake up and simplify.
Fix a few race conditions with deactivation.

(Moved around playlist code)

It will allow to fix playlist<->interface dependency problems.

No functionnality changes.

Some interfaces may assert because of missing playlist lock.

Therefore, create a new SearchBox that has a button appearing when typing something.

Signed-off-by: Antoine Cellerier <dionoea@videolan.org>

Signed-off-by: Antoine Cellerier <dionoea@videolan.org>