-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.
* 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.