Investigate on integration tests.

[kowalczyka]

Summary When migrating to maven, some of integration tests were omitted due to lack of quick solution on how this could be handled.

Details Existing integration tests should be verified. Additionally the way how to migrate and run them is needed.

Acceptance criteria

• [ ] Clear solution for handling currently existing integration tests must be introduced.

Additional context The test can be found here:

• https://github.com/servicecatalog/oscm/tree/v18.0/oscm-app-unittests/javasrc-it
• https://github.com/servicecatalog/oscm/tree/v18.0/oscm-app-aws-unittests/javasrc-it