it's a mod!

Restructure to make it a mod.

As things go, some changes slipped in:

• deleted:
  • timing macros - there's a profiler for that
  • functions to place static cars and civs. conceptually they didnt fit in really. might re-introduce later.
• added:
  • setting for corpsemanager mode
  • setting to allow civs on empty servers
  • some inline TODOs for shit that was out of scope