WCSim Validation

2461a55e3f7d27e833703578485159beabb23b18

Pull Request #568: Add missing WCSIM_HEPMC3_ENABLED preprocessor definition

SK_500MeVem_centre_xdir

Tests
3232.29 sec
wcsimrootevent plot pass
wcsimrootevent2 plot pass
wcsimrootevent_OD plot pass
Geom pass
bad pass
Geometry warnings pass