[1.1.x] Unify Z fade factor

[1.1.x] Remove obsolete UBL z_offset

Enable change the relative feedrate on a printing job in delta machines with UBL

[1.1.x] Different NEOPIXEL types

Changes to support NEOPIXEL LED strips
- Support for different NEOPIXEL as defined in Adafruit_NeoPixel.h
- ability to setup startup brightness
- ability to define sequential/non-sequential transition of color change during heating-up
- additional parameter to M150 P<brightness>

[1.1.x] Remove legacy ADVANCE feature

[1.1.x] Segmented manual moves for kinematics

[1.1.x] Allow UBL G29 and G26 to build without a probe

[1.1.x] Add support for 4 new LCDs

Based on #7447 by @Bob-the-Kuhn

- Original CR-10
- MKS Mini Display

* Auto-enable DISABLE_REDUCED_ACCURACY_WARNING if HOME_AFTER_DEACTIVATE enabled

If HOME_AFTER_DEACTIVATE, there is no need to warn on LCD since printer will home prior to starting print.  Saves 60 bytes PROGMEM.
add HD44780 too

* Reduce lines used

* Reduce lines used

Addressing #7612

[1.1.x] Fixing ANET encoder pulses

[1.1.x] Fix sd file list display bug

[1.1.x] G33 completely fixed and done

Tweak spacing in utf8_mapper.h

[1.1.x] Added Slovak C2C3C4 mapper implementation.

As pointed out in #7692 by @totalitarian

[1.1.x] XON/XOFF serial handshake (for faster transfers to SD)

[1.1.x] Fix DUAL_X_CARRIAGE manual move

Addressing #7745

XON/XOFF changes