WCSim Validation

7cccc7bbcdc3defccbed097ebc147502152dad4f

Pull Request #510: Clarify how dark mode 1 works with multiple PMT types

WCTE_5MeVem_centre_xdir

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