(RoF+) Implemented Hero's Forge Armor for NPCs.  Set the herosforgemodel field in npc_types table to the model (example: 84 for full set, or 12107 for robe).
(RoF+) Hero's Forge Armor now overrides NPC texture settings.  To display Hero's Forge Armor Helms, set helmtexture field to anything other than 0.
Fixed some NPC loading from the database that was incorrect after adding herosforgemodel.