#381 NPC_Spell enhancements

need DB flag + code to allow a spell to cast upon spawn/reset also need db flag +code for a spell to 100% cast on aggro

This is more involved than it might seem due to the current implementation:

• Right now we form spell lists for NPC's just as they are "Spells" so there are no ways to track DB information
• We load up NPC Spells for each Zone (YUCK!)
• Our Brain logic doesn't even handle encounters/group buffing. We only take care of our "self" which is pretty limited.

So the 3 items above need to be added to the list of adding these DB flags.