Prevent illegal leveling combinations

Addressing issue #6901

Account for dual XYZ in pulse delay cycles estimate

gcode.h - another compile error

only seen if

#if ENABLED(TEMPERATURE_UNITS_SUPPORT)
      ...
    #if
ENABLED(ULTIPANEL) && DISABLED(DISABLE_M503)

M355 case light improvements (replaces PR #5685)

gcode.h - fix compile error

==============================

Configuration_adv.h changes

==============================

add "live" LCD update

==============================

P & S version

==============================

final (hopefully) tested version

==============================

update M115 capabilities print

==============================

Menu changes portion of the requested changes

==============================

changed USEABLE_HARDWARE_PWM from a function to a series of macros

==============================

changes per review

invalid conversion from 'const char*' to 'char*' [-fpermissive]

Patch M24 / M125 for delta

enable DEACTIVATE_SERVOS_AFTER_MOVE with switching nozzle

Custom user commands menu

Generate error if MIXING_EXTRUDER and LIN_ADVANCE are both enabled

Fix LCD scrolling character counting

The menu (commands / scripts) is configurable in `Configuration_adv.h`.

- Added conditionals.
- Changed script handling.
- Slimmed and working!
- Added Status message.
- Returning to lcd status screen now!
- Example Configs Updated.
- Cleanups by @thinkyhead

Fix LCD to draw after value changes

Patch PROBE_MANUALLY + LCD_BED_LEVELING

Case light as a toggle menu item

Extend the ABL/MBL Bed Leveling menu

Scrolling status message (option)