Payment webhook improvements

The payment.updated webhook notification now includes more information.

Field Description

vendor Vendor information. This includes vendor id and name.

Field	Description
`vendor`	Vendor information. This includes vendor `id` and `name`.
`billingType`	A payment object is created for each payment. `billingType` is the source of the payment object creation. `BDC`: Payment made with the BILL web app or BILL API `BILL_AUTOPAY`: Payment made with the BILL autopay feature `NET_SYNC_FROM_ONLINE_PAYMENT`: Payment made outside BILL with the sync feature to a BILL customer `NET_SYNC_FROM_OFFLINE_PAYMENT`: Payment made outside BILL with the sync feature to a customer outside BILL `RECURRING_PAYMENT`: Payment made for a recurring bill

billingType

A payment object is created for each payment. billingType is the source of the payment object creation.

BDC: Payment made with the BILL web app or BILL API
BILL_AUTOPAY: Payment made with the BILL autopay feature
NET_SYNC_FROM_ONLINE_PAYMENT: Payment made outside BILL with the sync feature to a BILL customer
NET_SYNC_FROM_OFFLINE_PAYMENT: Payment made outside BILL with the sync feature to a customer outside BILL
RECURRING_PAYMENT: Payment made for a recurring bill