Mbst 9889 nitro ingest improvements

This pull request improves Nitro ingest:
- adding some missing fields to the mapping process.
- using V2 Nitro API (instead of V1) for retrieving formats.
Is this true? As I understood it, the iptv-all is there to pull in all the MediaSets we're outputting to YV, versus the existing MediaSets, which are for other purposes.