Some probes don't work near the edges of the bed. This change promotes MIN_PROBE_EDGE to a general setting that applies to all probing functions.

Some "fix-mounted" probes need manual stowing. And after probing some may prefer to raise or lower the nozzle. This restores an old option but tailors it to allow raise or lower as preferred.

- `M666` is static, not inline
- Disambiguate some stepper macros

Followup to d6df032

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.

Fix #9471

Based on #9705

* fix for #8669

* Update G28.cpp

* fix M48 for delta printers

fix M48 for delta printers. home printer if not already homed.

* remove ENABLED(DELTA)

remove ENABLED(DELTA) as it is not needed.

* Update M48.cpp

* abl needs queue.h

without queue.h abl will not compile since there is a script that runs at the end of it and we need to queue it up.

* Update Conditionals_post.h

* Add a cast to round() to convert to a unsigned int

Add's a cast to round() so that it will compile properly. round() returns a float which must be cast to a integer for the following % operation. Use a unsigned int as a negative index to an array is wrong. Should never be more than 255 points allowing us to use a 8 bit cast.

* Update G33.cpp

* [2.0.x] G33 magic numbers

* oops

* Comments

* oops

* warning

* better comment section

* remarks

* extra grids

* (2.0.x) serious bug G33

* Revert config changes

This reverts commit 74b5a98223.