chamber efficiency monitor

Adding a monitor for the chamber efficiency.

https://gitlab.cern.ch/lhcb/Rec/-/blob/MuonChamberEfficiency/Muon/MuonMonitors/src/MuonChamberMonitor.cpp?ref_type=heads

Algorithm provides efficiencies of the hits in stations, regions and chambers.

cc: @mfontana @mstahl @lopaoluc