WCSim Validation

71d7f3e0f5be5651501bfadf1e049696b0c32ace

Pull Request #552: Add GetSlopes option for 1D as well as 2D

HKFD_5MeVem_centre_xdir

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