changes:
Fixes a regression in GetAbove/GetBelow() that caused passing an atom that wasn't directly on the map to return a false negative.
Fixes runtime's broken Z1 MZ by moving it to Z2.
Fixes some outdated Z-level defines on Runtime.
Moves z_levels global to SSatlas for easier debugging.
Atlas will now list the size of the world in its MC entry.
Map diffs are fucked up because of the index shift, nothing on the maps themselves was actually changed beyond adding a blank Z at the bottom.
Fixes#4692.
changes:
Bidirectional source Z-lights have been reverted to single-direction in favor of corner z-bleed.
Z-mimic turfs will now average their light level with their mimiced turf to better approximate Z-lighting.
Openspaces have been made significantly less dark.
Corners no longer incorrectly always take the instant update pathway.
MultiZ helpers are now macros.
More things now properly respect area dynamic lighting settings.
* Openturf icon fixes and improvements
* more things
* Remove some pointless/bad layering/planing
* yeah well I didn't need this anyways
* Refactor Z mimickry to be at /turf
* more refactoring
* Cleanup, use turf/flags instead of z_mimic_flags
* Fix turf/Entered()
* misc optimizations
* fixes
* Major icon smoothing optimizations
* Speed up boot some more
* Fix AO
* Remove some redundant code
* Tie Z-lights to Z-mimic instead of openturfs
* Fix an opacity issue with no_mutate turfs
* Fix some issues with Z-mimic AO not properly clearing
* Fix some OT->OT changetuf bugs
* Add helpers for changing Z-mimic operational state on turfs
* Fix some merge issues, change how F_CUT smoothhint works a bit.
* indentation
* SSopenturf -> SSzcopy
