[IMP] account_payment: add invoice payment support in customer portal

This commit adds support of payment in the account customer portal. This
is done in the account_payment module. This way customers can now pay
invoices directly on the customer portal and have access to the status
of their invoices. It replaces the old website payment mechanism that
was only allowing to pay without generating payments and reconciliating
them.

Two routes are defined in this commit, one for form-based payments and
one for server2server-based payment. Please refer to commit 1fdb10f0ac20a15a9fb5c7e8e65a5dd80955bccd
for more details about the new payment form.

Tools methods are added to handle transaction / invoice matching, the
check of invoice and the automatic payment and reconciliation.

0 files changed, 0 insertions, 0 deletions