* Adds defines for world.tick_usage
* This provides no useful benefit whatsoever, but /tg and Baystation12 have done it, so it will make porting future code easier if we do too. No real harm done either.
Requires mid-round var edit to enable, can be used to determine how much of each tick each mob's Life call uses. Will not tell you WHY, of course, but will aim you at a specific mob hopefully. Worst case, we find out that it's actually just every mob.
Mostly ports /tg/'s method of seeding submaps into specific z-levels.
Due to the low number of submaps present, all of the PoIs are guaranteed to spawn. As more are added, this should fix itself.
-Adds a nifsoft that can be used for manual mind backups on the go sleevemate style.
-Fixes one-time backups not saving nifs (sleevemate and this thing)
-Apparently the backup proc only saved nifs on the second sync.
New lighting system is needed to handle updating literally 14k+ tiles whenever the sun moves. The straight port seems to have had no adverse effects from what I could see. Don't know if it's more performant but it doesn't seem to be less.
I didn't expect the latter would be needed for the former.
* No changes to lighting logic at all, it still processes sources, corners, and overlays in that order.
* Also optimized the initial creation of lighting overlays, and made it include CHECK_TICKs
* Removed the statistics gathering, at least for now.
* Since the transcore has a ticker process, it really should be a subsystem. Converted it over. However, because its ticker is so fast, I did not bother implementing MC_TICK_CHECK into it. Therefore it has the SS_NO_TICK_CHECK flag.
* Because its a subsystem, the global variable is now SStranscore instead of transcore.
* Because subsystems are so easy to debug, I removed the "TC" debugging variable from the machines that used it.
* Organized a few files. The transcore subsystem is in the subsystems folder. Defines had to be moved to defines folder so they are included first.
* Based on https://github.com/tgstation/tgstation/pull/25386
* Create macro for defining new subsystem types.
* Create PreInit proc to handle setup that needs to be done before the map loads
* Rename garbage_controller subsystem to garbage so it matches its global SSgarbage variable name.
