Update 42 named items


 * Minor artifacts
 * slot filigrees into them
 * filigrees stack with filigrees on weapon; still only different filigrees stack
 * start with one slot, can be leveled up
 * they don't have a sentient jewels
 * cheaper to level up than sentient jewels (half xp cost)
 * Characters can equip only one artifact at the time.
 * Unique items flavored as coming from different parts of Khorvaire (museum artifacts)