Reworked some 2d art, other various fixes to AI recruitment in the campaign, equipment themes and other bugs.

Fixed bugged values and config keys in cdir_unit_qualities_tables that were preventing the AI from building certain units inside the campaign.

Reworked Tetsubo Warrior Monks stats, cost, 2d art and equipment.

Reworked Yari Warrior Monk Cavalry 2d art, equipment and armour loadout.

Fixed a visual bug with the icons of Uesugi tetsubo warrior monks.