Implemented SPA 481, 485,486,512

Implemented

SE_Fc_Cast_Spell_On_Land 481
Focus effect that is checked when a spell is cast on a target, if target has this focus effect and all limiting criteria are met, then the target will cast a spell as specified by the focus. Can be given a roll chance for success. Base1=Chance, Base2=Spellid

Note: This spell has a huge amount of potential applications. See 'Alliance' type spells on live. (ie live spell 50247)

Implemented associated focus limits seen in live spells.

SE_Ff_CasterClass	485
- Caster of spell on target with a focus effect that is checked by incoming spells must be specified class or classes.

SE_Ff_Same_Caster	 486 -Caster of spell on target with a focus effect that is checked by incoming spells 0=Must be different caster 1=Must be same caster

The following is an associated effect seen with SPA 481

SE_Proc_Timer_Modifier 			512
This provides a way to rate limit the amount of spell triggers generated by SPA 481. For example after 1 successful spell trigger no additional spells can be triggered for 1.5 seconds. Ie. Base=1 and Base2 1500.
Written in a flexible format to allow scaling of multiple different buffs with this effect at same time.

zone/aggro.cpp

@@ -1018,6 +1018,7 @@ int32 Mob::CheckAggroAmount(uint16 spell_id, Mob *target, bool isproc)
 			case SE_Mez:
 			case SE_Charm:
 			case SE_Fear:
+			case SE_Fearstun:
 				AggroAmount += default_aggro;
 				break;
 			case SE_Root: