Accounting payments can now be grouped more broadly as batch payments instead of only batch deposits. This prepares SEPA payment workflows to use the same batch payment process, making payment handling more consistent across accounting features.

Generalizes batch deposits into batch payments, and modify SEPA modules so that they use them.

Task:
https://www.odoo.com/web#id=35558&action=333&active_id=967&model=project.task&view_type=form&menu_id=4720