* Implements usage of the REVERSE_DIR macro throughout the code. (#77122)
## About The Pull Request
Replaces a ton of `turn(dir, 180)` calls with the aforementioned macro.
## Why It's Good For The Game
Afaik, `REVERSE_DIR` was coded to be faster than the classic `turn(dir,
180)` call, being a simple set of binary operations. To sum it up, micro
optimization.
## Changelog
N/A
* Implements usage of the REVERSE_DIR macro throughout the code.
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Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>
* Remove ZLEVEL_STATION_PRIMARY
* Add Up and Down traits for use by ladders and chasms
* Give map_config creation its own proc
* Combine LoadConfig and ValidateJSON and remove transition_config
* Make space linkage a z-level trait
* Remove ZLEVEL_EMPTY_SPACE
* Update uses of GetFullMapPath
* Handle multi-Z stations and load Lavaland and Reebe at runtime
* Remove unused space maps
* Fix inappropriate z-expansion in map reader, improve logging
* Update comments relating to z-level configuration
* Add Lavaland and Reebe to ALL_MAPS
* Add basic structure of z-level traits
* Restore space transitions and add z-level debug verb
* Restore proper ruin spawning and transit level creation
* Replace station_z_levels and related checks with traits
* Eliminate more uses of ZLEVEL_{STATION_PRIMARY,LAVALAND}
