Broadcasting voice/audio to all users

[hugoponthieu]

Implementing audio/video transport

You should first complete #19 and #27.
We need to implement the service to broadcast audio and video. We are using web sockets to stream those data. You can see here what are the flow we want to implement.

The method should be implemented in the gateway. The "audio" message is emitted with a StreamPayload that should look likes this:

interface StreamPayload {
	channel_id: string
	audio: Blob
}

When "audio" message is received by the server the server re-emit in all sockets of the same room the StreamPayload

You can see an implementation here
You can see more specification of that flow here.