Update reference to support skin
Update reference to support skin

This new code was introduced by the brim-only-outside feature and gave no merge conflict, but was not up-to-date with the support roof rename to support skin.

Contributes to issue CURA-1413.

alephobjects/CuraEngine,Ultimaker/CuraEngine,Ultimaker/CuraEngine,ROBO3D/CuraEngine,ROBO3D/CuraEngine,ROBO3D/CuraEngine,totalretribution/CuraEngine,alephobjects/CuraEngine,totalretribution/CuraEngine,alephobjects/CuraEngine,totalretribution/CuraEngine