WCSim Validation

5b67d3a32da2f895720ac7289ca48205f0dbe615

Pull Request #540: add FDOD PMTs and set PMT3inchR14374_FDOD as default choice

HKFD_5MeVem_centre_xdir

Tests
659.25 sec
wcsimrootevent plot pass
wcsimrootevent2 plot pass
wcsimrootevent_OD plot pass
Geom
bad pass
Geometry warnings pass