Merge https://github.com/MarlinFirmware/Marlin into Bulgarian

Conflicts:
	Marlin/Configuration.h
	Marlin/configurator/config/Configuration.h
	Marlin/example_configurations/Felix/Configuration.h
	Marlin/example_configurations/Felix/Configuration_DUAL.h
	Marlin/example_configurations/Hephestos/Configuration.h
	Marlin/example_configurations/K8200/Configuration.h
	Marlin/example_configurations/SCARA/Configuration.h
	Marlin/example_configurations/WITBOX/Configuration.h
	Marlin/example_configurations/delta/generic/Configuration.h
	Marlin/example_configurations/delta/kossel_mini/Configuration.h
	Marlin/example_configurations/makibox/Configuration.h
	Marlin/example_configurations/tvrrug/Round2/Configuration.h

Conflicts with my Chinese implementation resolved.