Adding 2D HitMap
For the Muon system monitoring, adding 2D HitMap plots.
patch generated by https://gitlab.cern.ch/lhcb/Gauss/-/jobs/59267077
Edited by Erika De Lucia
For the Muon system monitoring, adding 2D HitMap plots.
patch generated by https://gitlab.cern.ch/lhcb/Gauss/-/jobs/59267077