Add line spacing setting
Add line spacing setting

This determines the distance between the passes of the sanding nozzle over the surface.

Contributes to issue CURA-3903.

fieldOfView/Cura,Curahelper/Cura,fieldOfView/Cura,ynotstartups/Wanhao,ynotstartups/Wanhao,Curahelper/Cura