* Add Formbot Raptor board

Co-Authored-By: InsanityAutomation <insanityautomation@users.noreply.github.com>

* Add a second Z probe Z offset

Co-Authored-By: InsanityAutomation <insanityautomation@users.noreply.github.com>

* Modify method to utilize live adjustment of hotend z offset

Should probably move config option to babystepping and rename as it may now apply to all multiextruder systems

* Move config item and catchup other code to current method

- Implements FR#11724
- Old behavior can be restored by commenting out MANUAL_E_MOVES_RELATIVE

* Add Multi Unit Support for Max7219 to bugfix_2.0.0

* Apply multi-MAX7219 to example configs

* Tweak some spacing, macros

...and recommended pulse width configuration for A4988

The timing value should be properly set for ALL boards. The compiler will check and set maximum step rate calculations based on those values.

- Stepper bugs fixed
- Support MIXING_EXTRUDER with Linear Advance
- Miscellaneous cleanup

- Respect axis max acceleration limits instead of forcing a fixed acceleration value.
- The `junction_unit_vec` ensures proper handling of entry and exit speeds even when the axes involved have different limits.

Part of #10688

Co-Authored-By: ejtagle <ejtagle@hotmail.com>