Status update for WG rmcat at IETF-102

As of IETF 102, RMCAT has completed its initial deliverables (SBD has been published as RFC8382; coupled congestion control is with the RFC Editor; and NADA has completed WG last call). The evaluation and video traffic model drafts are in WG last call, but blocked due to lack of review. The authors of the Google congestion control draft have stated that they do not intended to progress that draft further at this time. The RTCP feedback format is under development in AVTCORE, and has received good feedback.