Mute audio-line(in) on scheduled audio playout

Get xibo client to mute audio-inputs when a layout or scheduled item has audio.
This enables the possibility to have background audio present, and muted by item when not wanted during playout.
Options:
- Detect item audio and mute line-in
- Use of checkbox "play audio" with schedule of media-files
- and/or use checkbox "mute line-audio" with schedule, not connecting playout of media enabling a "silence"-screen

!! Makes use of XIBO first choice for cloudbased cable-tv playout, with use of local mediafiles, and in-cloud contributions