Added Threat (Works hand in hand with Aggro)

Added in Threat for healing health, mana, and barriers,
Also added in basethreat and made it auto-update with onThink and
SearchTarget.
Fixed Slots

When adding more Slots some LUA Functions no longer worked.
Fixed NPC Turn Directions

Made it so when you set a NPC to walkInterval 0 and give them a
direction they will turn to that direction when idle.