Use offset instead of collision area to evade objects
Use offset instead of collision area to evade objects

It's less stable but at least we'll produce a more accurate avoidance area this way.

Contributes to issue CURA-4523.

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