[reSIProcate] reCon: using Jitsi-Videobridge with instead of sipXtapi

[Daniel Pocock]

I created a high-level bug for this possible integration:

https://www.resiprocate.org/bugzilla/show_bug.cgi?id=147

It may only work for WebRTC, not for regular RTP

It runs as a standalone process and it is controlled through a REST API,
examples:

https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-colibri.md