Removes a whole bunch of in world loops.
Reworks SSmachinery to hold two lists: all_machines and processing_machines. all_machines contains all machines 5ever. All of them. Literally. Forever. And ever. processing_machines only contains machines that process with the SSmachinery controller.
I checked most types at runtime on the live server to see whether they're in processing_machines or in all_machines, and did debug to ensure that most machinery ends up and stays in all_machines.
Includes a basic UT to make sure all mapped in machinery types remain within the all_machines list post-init.
0fc67f2cb9