Enable workshops for all civilisations.
Also in this patch:
- reorder workshop training queue to ram, boltshooters, stonethrowers, siege towers
- remove all siege units and technologies from all fortresses
- list champions before heroes in the production queues of fortresses
- update tooltips of fortresses accordingly.
Patch By: Nescio
Reviewed By: wraitii
Differential Revision: https://code.wildfiregames.com/D1761