Add Buff infrastructure to go through different logic paths from different patches (#5073)

common/patches/titanium_ops.h

@@ -21,7 +21,7 @@ E(OP_AdventureMerchantSell)
 E(OP_ApplyPoison)
 E(OP_BazaarSearch)
 E(OP_BecomeTrader)
-E(OP_Buff)
+E(OP_BuffDefinition)
 E(OP_ChannelMessage)
 E(OP_CharInventory)
 E(OP_ClientUpdate)
@@ -61,7 +61,6 @@ E(OP_ManaChange)
 E(OP_MemorizeSpell)
 E(OP_MoveItem)
 E(OP_OnLevelMessage)
-E(OP_PetBuffWindow)
 E(OP_PlayerProfile)
 E(OP_NewSpawn)
 E(OP_MarkRaidNPC)
@@ -91,7 +90,7 @@ D(OP_AdventureMerchantSell)
 D(OP_ApplyPoison)
 D(OP_AugmentItem)
 D(OP_BazaarSearch)
-D(OP_Buff)
+D(OP_BuffDefinition)
 D(OP_Bug)
 D(OP_CastSpell)
 D(OP_ChannelMessage)