For each engine:
- Make a new folder detection
- Move detection-related files inside the folder
- Add a new module "enginename/detection"
- Add DETECT_OBJS here
- Adjust the normal engine module to remove detect_objs
- Adjust every file for the new changes.
- Move AGOSGameDescription -> detection.h
- Move obsoleteGameIDsTable -> obsolete.h
- Both the above points are because the detection needs them, as well as the engine.
- By moving to headers in this pattern, we avoid many unnecessary inclusions and keep everything clean.