[FIX] account: payment communication

- Set up a journal which only accepts SEPA payments
- Import a CAMT file which contains a statement containing:
  No "Ustrd" data
  A "AddtlNtryInf" description longer than 140 characters
- Reconcile the bank statement

A contrain is raised because the communication of the SEPA payment is
longer than 140 characters.

From commit https://github.com/odoo/enterprise/commit/ff84f8b7,
"AddtlNtryInf" is used if "Ustrd" is empty. However, "AddtlNtryInf" and
"Ustrd" do not have the same restrictions. "Ustrd" can have a maximum of
140 characters, while "AddtlNtryInf" can have a maximum of 500
characters.

opw-772009