Feature/CEC detection (#877)

* Add CEC functionality

* Initial commit

* removed libCEC from the system skip list

Co-authored-by: Paulchen Panther <16664240+Paulchen-Panther@users.noreply.github.com>

include/hyperion/Hyperion.h

@@ -550,6 +550,5 @@ private:
 	/// Boblight instance
 	BoblightServer* _boblightServer;
 
-	/// mutex
 	QMutex _changes;
 };