[WIP] Adds integration tests on text_collection attribute type

[fitn]

• [ ] Make Jenkinsfile compliant with CI 2.0
• [x] Add Integration tests for Attributes (CRUD)
• [x] Add Integration tests on Family (Adds text_collection attribute on a family)
• [x] Add Integration tests for Simple Products (Create value, Update value, Delete value, create/delete value lines)
• [x] Add Integration tests for Completeness
• [x] Add Integration tests to validate values
• [x] Add Integration tests for Import
• [x] Add Integration tests for Export
• [ ] Add Integration tests to filter on Product values
• [ ] Add Integration tests on normalizers (Internal, API, etc. ?)