allow firmware retraction

[oliof]

Is your feature request related to a problem? Please describe. Currently, the tool generates GCodes to retract and unretract. But some firmwares support Firmware Retract/Unretract with the G10/G11 Gcode commands

Describe the solution you'd like Allow users to select Firmware Retract. This should inactivate the settings for Retract/Unretract

Additional context

• RepRapFirmware: G10, [G11](https://docs.duet3d.com/User_manual/Reference/Gcodes#g10-tool-temperature-setting]
• Marlin also G10/G11
• Klipper also G10/G11

Some slicers use M101/M102/M103, but it's best to ignore those IMO

[AndrewEllis93]

Firmware retract added. Tick "advanced mode" at the top.