[FEATURE TASK] Integration tests separation

[mslowiak]

⚠️ Is your feature request related to a problem? Please describe

We want to have integration tests in the separate module rather than in the service module as actually.

💡 Describe the solution you'd like

Need to move integration tests to integration-tests module.

The following sub-tasks are needed:

• [x] Remove actual integration test classes and change packaging (directory/unit, directory/integration to simply directory) #182
• [x] Create configuration in integration-tests module to be able to run a basic integration test #183

After that we can proceed with the following:

• [ ] Write integration tests for AmenityController
• [ ] Write integration tests for CommunityController
• [ ] Write integration tests for HouseController
• [ ] Write integration tests for HouseMemberDocumentController
• [ ] Write integration tests for PaymentController
• [ ] Write integration tests for UserController