* Add board folder with files of various board containing the pins
* Rewrite macros
* Fix M109 so it won’t wait for cooling
* Clear code
* Bug fix
Add board ULTRATRONICS V1.0 to MK4due
Aggiuanta scheda ULTRATRONIC V1.0 a MK4due
### Version 4.2.7
* Add M906 Set motor Currents for ALLIGATOR board
* Add M408 JSON OUTPUT
* Add Cartesian Correction Hysteresis and Zwooble
* Bug fix
### Version 4.2.6
* Bug Fix
### Version 4.2.5
* Big Update
* Add HAL for 8 bit version
* Rewrite Communication
* Rewrite Servo
* Add Color Mixing Extruder
### Version 4.2.4
* Added Abort on endstop hit feature
* Added Purge command G1 P
* Added M222 T
### Version 4.2.3
* Added Filament tot printed in stats
* Overall rewrite
### Version 4.2.2
* Added the possibility to invert the logic for lcd buttons.
* Language files bugfix.
* Fixed a freeze problem during write operations to the SD.
* Re-enabled by default SDSUPPORT for DISCOUNT displays.
### Version 4.2.1
* SDSUPPORT disabled by default.
* General BugFix.