`fix/loyaltycascade` does not put fortress animals out of combat

[amade-w]

During tavern brawls (and actual loyalty cascades, probably), animals would often join in the fighting. However, loyaltycascade does not appear to fix the animals and they would continue fighting even after everyone else has stopped. I assume this is because dfhack.units.getCitizens() that is used in the script to find and fix units does not include fortress animals.