typefindfunctions: Extend MCC typefinder to also cover version 2.0

Both versions are basically the same, but version 2.0 also allows
60000/1001 as framerate and allows to specify the field and line number
for each payload.

Put the major version into the caps so that elements can limit via caps
negotiation which versions they can support.
6 jobs for mcc-v2-typefind in 29 minutes and 18 seconds (queued for 1 second)
Status Job ID Name Coverage
  Preparation
passed #70067
gst indent

00:00:33

passed #70066
manifest

00:00:35

 
  Build
passed #70068
build fedora x86_64

00:04:45

 
  Test
passed #70069
check fedora

00:14:35

 
  Full Builds
passed #70070
build android arm64 api28

00:05:18

passed #70071
build cerbero fedora x86_64

00:09:21