Introduce a CuraContainerStack that has all the code shared between global and extruder
Introduce a CuraContainerStack that has all the code shared between global and extruder

Since there is actually quite a lot of it

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