With this option enabled, Z won't ever be raised until after `G28` has been completed, and it won't raise if Z becomes unknown. This is good for machines whose beds fall when Z is powered off.

…and limit the raise to Z_MAX_POS

Fix #10029

added device & comm drivers for shared SPI LCDs

mistyped some updates in ultralcd_impl_DOGM.h

remove unwanted changes in onfiguration.h

still can't type

Update HAL_LCD_class_defines.h

include USB mass storage & misc

Fix #10029

Fixes #9939

Fix #9948

Fixes #10003

A capital idea from https://github.com/MarlinFirmware/Marlin/pull/9914#issuecomment-371614153

Previously `position_is_reachable_by_probe` was limited to the area specified for `G29` mesh leveling (even if leveling was disabled). This change will properly consider the entire bed area so that `G30` and other non-leveling probing may take place.

Fix #10004

Fix #10012

Followup to #9985

Fix #9988

Followup to 7e386c7

Missed in the original LA 1.5 PR: eISR has to use a local copy of
current_block->use_advance_lead because it might still run wenn the last
block has been set to NULL.

Thanks Chuck Hellebuyck.

Followup to #9832

Fix #9966

- Show units on lightweight status screen.
- Fixed progress bar so it works with M73