Add __init__ file or else py2exe fails.
Add __init__ file or else py2exe fails.

derekhe/Cura,bq/Ultimaker-Cura,lo0ol/Ultimaker-Cura,senttech/Cura,totalretribution/Cura,quillford/Cura,fxtentacle/Cura,quillford/Cura,lo0ol/Ultimaker-Cura,fieldOfView/Cura,ynotstartups/Wanhao,DeskboxBrazil/Cura,fieldOfView/Cura,hmflash/Cura,bq/Ultimaker-Cura,ynotstartups/Wanhao,Curahelper/Cura,markwal/Cura,DeskboxBrazil/Cura,derekhe/Cura,ad1217/Cura,totalretribution/Cura,senttech/Cura,markwal/Cura,fxtentacle/Cura,hmflash/Cura,ad1217/Cura,Curahelper/Cura