* TEST : add test for bon_prelevement generation
* TEST : add tests for bank transfer SEPA file generation
* FIX WARNING : dol_syslog(array) outputs a warning.
* FIX bon prelevement : non-default IBAN were not used in the generated XML.
* BonPrelevement test : add validation against XSD
* BonVirement test : add validation against XSD
* FIX codesniffer
* Enhance test error messages
* Avoid PHP warning during tests
* TEST FIX : one bank account was not created
* TEST FIX : runnning all tests makes this one fail because is corrupted by a previous test.
---------
Co-authored-by: Laurent Destailleur <eldy@destailleur.fr>
