proposal to add MC info. on MuDst file

 we would like to know if it's possible (if any other people/analysis are related to) to add MC information in MuDst file (MuTrack branch).

This info already exist in minimc file (matchedPairs for example,  the geantId, parentGeantId) but not in MuDst files, where most of analysis rely on.

The parameters could be the idTruth and quality of track.