[FR] Biqu Microprobe support

[salembegic]

The BTT TFTs have a manu for manually testing the BlTouch probe. In there you can test the probe, deploy it, stow it..., but there is currently no support for the Biqu Microprobe. Since the Microprobe works based on the pin state and does not emulate the servo motor, current buttons just show an error when pressed, as the G code commands are not recognised.

I would like to have an option to choose between the Bltouch probe and Microprobe in configuration.ini, and if the microprobe is selected it should show a different menu with buttons that emulate the appropriate comands.