WCSim Validation

5e431c3dab3a123453a989a1231f8690a95b41a0

Pull Request #468: Feature/od coverages

HKFD_500MeVem_centre_xdir

Tests
10202.03 sec
wcsimrootevent plot pass
wcsimrootevent2 plot pass
wcsimrootevent_OD plot pass
Geom pass
bad pass
Geometry warnings pass