pion-WebRTC passes through every step, but messages get discared because
MI check is failing. We are able to Offer (or answer) to Chrome after
this is done
All the examples need to be updated, SDP should only be
emitted after gathering is done (until we support trickle)
Currently we can't be controlling-ICE, but that is probably a days
worth of work. After that is done pion-WebRTC should be able to talk
to itself.
Candidates are now generated with real priority, and actually pay
attention to the inbound messages.
Next we just need to pluck use-candidate + ice-controlling from the
messages and we will have a full-ice implementation (but we are not
controlling)
We then need to add timers to alert when the peer goes away OR when we
need to send again.
