optimized skirt calculations, changed outline smoothing
optimized skirt calculations, changed outline smoothing

patrick3coffee/CuraTinyG,fxtentacle/CuraEngine,pratikshashroff/pcura,alephobjects/CuraEngine,Ultimaker/CuraEngine,jacobdai/CuraEngine-1,foosel/CuraEngine,derekhe/CuraEngine,mspark93/CuraEngine,alephobjects/CuraEngine,pratikshashroff/pcura,ROBO3D/CuraEngine,uus169/CuraEngine,patrick3coffee/CuraTinyG,electrocbd/CuraEngine,totalretribution/CuraEngine,markwal/CuraEngine,patrick3coffee/CuraTinyG,uus169/CuraEngine,fxtentacle/CuraEngine,uus169/CuraEngine,markwal/CuraEngine,pratikshashroff/pcura,jacobdai/CuraEngine-1,ROBO3D/CuraEngine,foosel/CuraEngine,alephobjects/CuraEngine,markwal/CuraEngine,derekhe/CuraEngine,Ultimaker/CuraEngine,mspark93/CuraEngine,ROBO3D/CuraEngine,foosel/CuraEngine,jacobdai/CuraEngine-1,mspark93/CuraEngine,alex1818/CuraEngine,totalretribution/CuraEngine,alex1818/CuraEngine,derekhe/CuraEngine,totalretribution/CuraEngine,alex1818/CuraEngine,electrocbd/CuraEngine,electrocbd/CuraEngine,fxtentacle/CuraEngine