Integrate testrtc with Olympus

[hrosa]

It would be interesting to integrate testrtc with Olympus so we could have a tool to help us diagnose problems with the quality of the calls.

https://webrtchacks.com/webrtc-troubleshooter/
https://github.com/webrtc/testrtc

[atsakiridis]

Need to discuss if we still need that now that getStats() functionality is there. Still need to discuss the best way to present the info to the user though