WCSim Validation

3aeae62d004dfc8e38c4413e603029ecfc9e311d

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

HKFD_5MeVem_centre_xdir

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