Feature: Align Bioportal and AgroPortal - part 2.1 - Add UI tests

[syphax-bouazzouni]

Require to be merged first

• Feature: Align Bioportal and AgroPortal - part 1 - Configuration code and Docker  #21

Context

This PR adds ui controller tests, to run do bin/ontoportal test

[alexskr]

• The unit test for the ontologies controller walks all ontologies. While this is reasonable for most OntoPortal instances, it will create problems for BioPortal since it has a large number of ontologies, and some are not well-curated (broken). We need to add an option to pass in a list of specific ontologies against which to run the tests.
• some of the tests are run for the functionality that is not yet present in this code base. Those tests should be disabled