Building addons works:
- Added addon-specific code to BuildingManager
- Added the same code to WorkerManager (but it didn't work because workers are not buildings)
Reversed WorkerManage to the initial state
Moved finding building for an addon to a separate function
Updated findAddonBuilding:
- Renamed findAddonBuilding to setAddonBuilding
- Corrected memory error
Corrected bug: SCVs no longer pretend to build Addons
Merge branch 'feature/terran_addons' into develop