Printing progress bar increase percentage display (#80)

Firmware/Robin_nano35.bin

Firmware/mks_pic/bmp_language.bin

Marlin/Configuration.h

Marlin/src/lcd/extui/lib/mks_ui/draw_dialog.cpp

Marlin/src/lcd/extui/lib/mks_ui/draw_filament_change.cpp

Marlin/src/lcd/extui/lib/mks_ui/draw_keyboard.cpp

Marlin/src/lcd/extui/lib/mks_ui/draw_printing.cpp

Marlin/src/lcd/extui/lib/mks_ui/draw_set.cpp

Marlin/src/lcd/extui/lib/mks_ui/draw_tool.cpp

Marlin/src/lcd/extui/lib/mks_ui/draw_ui.cpp

Marlin/src/lcd/extui/lib/mks_ui/printer_operation.cpp

Marlin/src/lcd/extui/lib/mks_ui/tft_lvgl_configuration.cpp

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h