Enhance testing clause for unit tests

   In the server stubs folder, execute the following command:

   ```sh

   # Launch the testing DBs...

   ~/AdvantEDGE/test/start-ut-env.sh

   # Do the tests gain and again...

   $ go test -count=1 ./... -cover

   # When tests are achieved, stop the DBs

   ~/AdvantEDGE/test/stop-ut-env.sh

   ```

## Integration tests for the new micro-service