Minor Description
Currently OFBiz creates a Store Credit as a Payment associated with a Billing Account (creating a new BA if one doesn't already exist). Do same for fin account.
Following are the steps to do this:
(1) Add a field to the ProductStore entity to specify whether returns should go on a Financial Account or a Billing Account.
(2) Extend the processCreditReturn service to look at that setting and if set for a Financial Account find one for the customer (create one if necessary) and add a credit transaction to it for the credit and associate that credit transaction to the ReturnItem it came from (just like currently done with BillingAccount Payment).