UBL: G26 minor improvements

General cleanup of G33

Fix Dual-Z endstop conditional test

- update comment section
- redefined P5 grid
- minor clean to probe radius routine
- updated EEPROM version to V37 according remark in #6517

Fix, cleanup, prettify `G29 O` output

Various leveling-related patches

* Fix Horizontal and Vertical optimization bug.

And drastically reduce the debug code foot print....

* Yeah Baby!

The debug print is going A - OK !

Fixes for DUAL_NOZZLE_DUPLICATION_MODE

Revert "Fix for Meshpositions if printer has negative endstop positions"

Patch DELTA_HEIGHT, BLTOUCH init

Various fixes for compiler warnings

- Only call `set_heaters_for_bltouch` when actually deploying/stowing
- Clear `next_emi_protection` when re-enabling heaters

add BLTouch-related messages in english and (rusty) french;
add missing endstops.h in ultralcd.cpp;
fix misc. compiler warnings;
fix lsf_reset - ZERO macro can't handle a pointer as it would only memset the size of the pointer, not the size of the entire struct

Some minor cleanups to code formatting

Need to define this for Rigidboard V2