WCSim Validation

b10103ee5b6fac9171d5affcd103114bb56c9ffc

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

SK_500MeVem_centre_xdir

Tests
3186.98 sec
wcsimrootevent plot pass
wcsimrootevent2 plot pass
wcsimrootevent_OD plot pass
Geom pass
bad pass
Geometry warnings pass