prefer PyConf.reading.get_mc_track_info over RecoConf.data_from_file.make_mc_track_info

use LHCb's PyConf.reading.get_mc_track_info instead of its copy RecoConf.data_from_file.make_mc_track_info in Moore...

can be merged standalone as-is, but is required for Moore!2831 (merged) -- and since Moore!2831 (merged) requires LHCb!4403 (merged), this MR also contains reference updates for LHCb!4403 (merged) (as a dedicated commit)