AI Spell Effects

Implemented new table 'npc_spells_effects' and 'npc_spells_effects_entires'.
Implemented new field in 'npc_spell_effects_id' in npc_types.

These are used to directly apply spell effect bonuses to NPC's without requirings spells/buffs.
Example: Allow an npc to spawn with an innate 50 pt damage shield and a 5% chance to critical hit.

Please see the wiki page: http://wiki.eqemulator.org/p?npc_spell_effects_entries for details.

*NPC's can now do critical heals / damage spells if bonus is applied from table.

Required SQL: utils/sql/git/required/2014_04_27_AISpellEffects.sql
Note: 30 examples of spell effects have been included by default in this sql. Edited/removed as needed.