WCSim Validation

ae14940f18967ef9a50298332d423d0179c895c2

Pull Request #546: Create different tyvek surfaces

SK_500MeVem_centre_xdir

Tests
3140.23 sec
wcsimrootevent plot pass
wcsimrootevent2 plot pass
wcsimrootevent_OD plot pass
Geom pass
bad pass
Geometry warnings pass