Add support for CVT RBv2 and v3
This library only implements v1.
Ref https://git.linuxtv.org/edid-decode.git/commit/?id=fa87c71f11a17400def68dad20dc26fd0c447dcd
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
This library only implements v1.
Ref https://git.linuxtv.org/edid-decode.git/commit/?id=fa87c71f11a17400def68dad20dc26fd0c447dcd