Made G-code reader a lot faster. CURA-3390
Made G-code reader a lot faster. CURA-3390

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