WCSim Validation

ae14940f18967ef9a50298332d423d0179c895c2

Pull Request #546: Create different tyvek surfaces

TEST_SK_5MeVem_centre_xdir

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