Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

- Move `pause_print` argument `unload_length` after `show_lcd` so it's next to `DXC_ARGS`.
- Tweak the position and conditions of PLR save in `resume_print`.
- Add `Nozzle::park_mode_0_height` accessor to get the raised Z height.
- Remove extraneous `recovery.save` from `dwin.cpp`.
- Move PLR `info.volumetric...` to `flag`.
- Remove some G-code spaces in PLR code
- Document `pause.h` function declarations.

Co-authored-by: Jason Smith <jason.inet@gmail.com>
Co-authored-by: Scott Lahteine <github@thinkyhead.com>

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Allow `ENABLED`, `DISABLED`, `PIN_EXISTS`, and `BUTTON_EXISTS` to take multiple arguments. Also add:
- Alias `ANY(...)` for `!DISABLED(...)`
- Alias `ANY_PIN(...)` for `PIN_EXISTS(a) || PIN_EXISTS(b) ...`
- Alias `EITHER(A,B)` for `ANY(...)`
- Alias `ALL(...)` and `BOTH(A,B)` for `ENABLED(...)`
- `NONE(...)` for `DISABLED(...)`

Use macros that explicitly avoid double-evaluation and can be used for any datatype, replacing `min`, `max`, `abs`, `fabs`, `labs`, and `FABS`.

Co-Authored-By: ejtagle <ejtagle@hotmail.com>

* Use NOZZLE_PARK_FEATURE for ADVANCED_PAUSE_FEATURE

* Nozzle.cpp: replace incorrect M_2_PI (2/pi) with 2.0 * M_PI

* Use RADIANS(360) instead of 2 * M_PI