Refactor processInsetsWithOptimizedOrdering() to reduce its size.
Refactor processInsetsWithOptimizedOrdering() to reduce its size.

Now the blocks of code that process the holes and the outer wall are placed in their own
functions: processHoleInsets() and processOuterWallInsets().

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