API BankButtonIDToInvSlotID

Maps a BankButtonID to InventorySlotID.
 invSlot = BankButtonIDToInvSlotID(buttonID, isBag)
==Parameters==
===Arguments===
:;buttonID: - bank item/bag ID.
:;isBag:1 if buttonID is a bag, nil otherwise. Same result as ContainerIDToInventoryID, except this one only works for bank bags and is more awkward to use.
===Returns===
:;invSlot:An inventory slot ID that can be used in other inventory functions