Make roofing overlap with skin
Make roofing overlap with skin

rather than skin overlap with roofing

CURA-9625

Co-authored-by: R van Manen <147affca4edfb060af20569ff994de0fa29ea40f@ultimaker.com>
Co-authored-by: J de l'Arago <89cbdbc6340c8d986df0155a678169d4a3bd0a73@ultimaker.com>

Ultimaker/CuraEngine,Ultimaker/CuraEngine