[roboweb]: Separate websocket and controller connections
[roboweb]: Separate websocket and controller connections

The controller can only handle one connection at a time, so we have
to do our multiplexing at the HTTP/WebSocket end.

rkunze/ft-robo-snap,rkunze/ft-robo-snap,rkunze/ft-robo-snap,rkunze/ft-robo-snap