Core/Spell: restore old proc system behaviour on auras self proc.

- Use Spell::m_triggeredByAuraSpell and compare against trigger aura, it requires scripts to set triggeredByAura parameter.
- Fixed existing scripts lacking it

DB/Spell: Anger Capacitor (Tiny Abomination in a Jar) proc

Closes #18269

(cherry picked from commit 5b56c94e6d)

# Conflicts:
#	src/server/game/Entities/Unit/Unit.cpp
#	src/server/game/Spells/Auras/SpellAuras.cpp
#	src/server/game/Spells/Spell.cpp
#	src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
#	src/server/scripts/Pet/pet_hunter.cpp
#	src/server/scripts/Spells/spell_dk.cpp
#	src/server/scripts/Spells/spell_druid.cpp
#	src/server/scripts/Spells/spell_hunter.cpp
#	src/server/scripts/Spells/spell_item.cpp
#	src/server/scripts/Spells/spell_mage.cpp
#	src/server/scripts/Spells/spell_paladin.cpp
#	src/server/scripts/Spells/spell_priest.cpp
#	src/server/scripts/Spells/spell_rogue.cpp
#	src/server/scripts/Spells/spell_shaman.cpp
#	src/server/scripts/Spells/spell_warlock.cpp
#	src/server/scripts/Spells/spell_warrior.cpp

src/server/game/Spells/SpellMgr.cpp

@@ -429,7 +429,7 @@ SpellProcEntry const* SpellMgr::GetSpellProcEntry(uint32 spellId) const
     return NULL;
 }
 
-bool SpellMgr::CanSpellTriggerProcOnEvent(SpellProcEntry const& procEntry, ProcEventInfo& eventInfo) const
+bool SpellMgr::CanSpellTriggerProcOnEvent(SpellProcEntry const& procEntry, ProcEventInfo& eventInfo)
 {
     // proc type doesn't match
     if (!(eventInfo.GetTypeMask() & procEntry.ProcFlags))