Updated for 6.1

-Added Chaos Warriors and forsaken to unit sets, so they benefit from Norscan technology and skills.

-Replaced Marauder Hunters with Kossars for Bjornling
-Fixed bug where Norscan factions could recruit horsemen

Kul is now a hybrid Chaos/Steepe faction. They can now recruit marauder horsemen, but lose access to Forsaken and Spawn.

Switched from military groups to buildings allowed for greater compatibility

Added partial compatibility for Tribes of the North