add steps to test_checkCredentialQuestionIsNotCaseSensitive and replace name in tests to use barney instead of real name

This is the expected parameter to allow tesseract convertion.

if delivery_mode, incoterm or payment_mode is defined in Trade Model Path, we just use it and should not care one that is stored in input movement.

Use copy.deepcopy instead of asContext. Persistent object connected to zodb must not be stored in on-memory classes.

Use Base.checkConsistency to test constraints instead. This is the method which real users are using.

add step to create a Person to avoid duplicated code and add test to check that to prove that ERP5Site_newCredentialRecovery will work correctly in case if no question/answer is provided

update tests to follow last changes in erp5_credential. The changes were: 57e6dbf6, ee9adc59, 8ac9c40f

TemplateTool API can find the appropriate name for the file.

update to add category list in portal_preferences. This change is to follow the changes in erp5_credential