Bump LayerView API version to 3
Bump LayerView API version to 3

It does not use any setting API so it is safe

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