Tidy transformation trait/activity.
Pass initial race to husks and transformed actors.
Tidy production traits.
Fix remaining tech tree issues.
Remove some long-dead code.
Allow ProductionQueue to filter by race.
Use Prerequisites: ~disabled for unbuildable actors.
Add HackyAI support for multiple structure queues.
Fix captured tech unlocking in TD.
Introduce Order.SuppressVisualFeedback to cleanly disable flashes.
Use ExtraData for SetStance and SetUnitStance.
Avoid repeated queries of DeveloperMode.
Fix CanBuild not checking DeveloperMode.AllTech.
Propagate race to produced actors.