Initial release

Updated the equipment of the Highland and Nord Mercenaries and tweaked the stats a little.
(Forgot to add the optional file in its own folder)

Removed some duplicated items and updated gear on some Western Mercenary unit

- Added Melee Cavalry branch to Steppe Mercenaries, renamed the original units.
- Minor changes to the Highland T5 Mercenaries loadout

Expanded the imperial mercenaries tree. Minor tweaks to the Equipment of some Units.