changes.md

Api changes

Added Type(s)

• added type CartLock
• added type CartLockCartAction
• added type CartSetPurchaseOrderNumberAction
• added type CartUnlockCartAction
• added type CartPurchaseOrderNumberSetMessage
• added type CartPurchaseOrderNumberSetMessagePayload

Added Property(s)

• added property lock to type Cart
• added property purchaseOrderNumber to type Cart
• added property purchaseOrderNumber to type CartDraft