* Fix G26's circle drawing...

This mostly catches the bugfix-v1.1.x branch up to bugfix-v2.0.0

I'll have to do something similar to get bugfix-v2.0.0 caught up to
bugfix-v1.1.x

* only use planner.leveling_active if appropriate

Move 'lcd_bootscreen()' from `lcd_init()` to 'setup()' where it is cexecute exactly once. Saves 'bool show_bootscreen'.
Move the call of 'lcd_custom_bootscreen()' to the begin of 'lcd_bootscreen()'.
Move the delays into the related functions.
Move the picture loop around 'lcd_kill_screen()' into the function.

* [1.1.x] G33 magic numbers

* oops

* comments

* oops

* warning

* better comment section

* remarks

* extra grids

* Fix case light "off" function

It would only turn the light off if brightness was 255

* Update Marlin_main.cpp

Addressing #6655

* [1.1.x] Fix NO_MOTION_BEFORE_HOMING unwanted behaviour

NO_MOTION_BEFORE_HOMING should prevent XYZ movements only when homing is not done.
E axes should be allowed

* Update Marlin_main.cpp

* Update Marlin_main.cpp

* Update Marlin_main.cpp

* auto tune calibration parameters

* solve warnings

* Tweaks to formatting

* review Thinkyhead

* Error

set_destination_to_current() changed to set_destination_from_current()

set_current_to_destination() changed to set_current_from_destination()

* Add M290 babystepping

* Allow `Z` for `M290`

* fix spacing

* Support BABYSTEP_XY in M290

* Not just Z

* Extend M290 for BABYSTEP_ZPROBE_OFFSET

* tweak

Based on #7975 and #7979

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

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>

- Original CR-10
- MKS Mini Display

Added new configuration to inhibit XYZ movements when home is not done

Expected behaviour: while (auto)extruding the new filament, the nozzle should not move. It should move (from filament replacement position to printing position) only after the user has confirmed the successful filament replacement and extrusion.

Actual behaviour: while (auto)extruding the new filament, the nozzle moves from filament replacement position back to printing position.
So the extrusion step is mixed with the movement required to go back to the printing position.

The provided code seems to be working but probably a better fix is required.