peerJS audio calls for remote broadcasts

[Lovinity]

Utilize peerJS audio calls between DJ Controls for remote broadcasting instead of using external software such as a remote radio stream, Discord, Skype, phones, etc.

• [x] Complete https://github.com/Lovinity/wwsu-dj-controls/issues/16 and https://github.com/Lovinity/wwsu/issues/42

• [x] Remove the use of remote radio streams from the server. Remove checking for it in Status. Remove switching to _disconnected state when the stream disconnects. Remove any instances in the app where the remote stream is queued in RadioDJ.

• [ ] Whenever the silence detection calls silence/active during remote_on or sportsremote_on, switch to *_disconnected state. This will be our check for peerJS calls.

• [ ] Test for bugs

[Lovinity]

This is high priority; bumped to 5.1.0

[Lovinity]

The remainder of this will be completed in 6.0.0.

[Lovinity]

PeerJS has not worked well for us. Trying SkywayJS, which is a spinoff of PeerJS using better STUN and TURN servers.