Spells → Battlefield Relation

File in server/game/Spells	Includes file in server/game/Battlefield
Spell.cpp	Battlefield.h
Spell.cpp	BattlefieldMgr.h
Auras / SpellAuraEffects.cpp	Battlefield.h
Auras / SpellAuraEffects.cpp	BattlefieldMgr.h
SpellMgr.cpp	BattlefieldMgr.h