feat: enable swagger configuration in development.
2021-03-27 13:01:07.550 INFO 73866 --- [ restartedMain] run.halo.app.listener.StartedListener : Halo started at http://localhost:8090
2021-03-27 13:01:07.550 INFO 73866 --- [ restartedMain] run.halo.app.listener.StartedListener : Halo admin started at http://localhost:8090/admin
2021-03-27 13:01:07.551 DEBUG 73866 --- [ restartedMain] run.halo.app.listener.StartedListener : Halo api documentation was enabled at http://localhost:8090/swagger-ui.html