Adding relbcid to MM RDO
This merge request adds the relBCID to the RDO of the Micromegas. This is needed to be able to process real data. For now, the digitization does not decompose the time measurement into the relBCID at TDO but maybe should do so at some point in the future. This MR breaks the readability of old RDO files.
Edited by Patrick Scholer