Integration of tapir-swagger-ui-bundle with http4s service to auto generate openAPI docs (scala 2.13)

referenced: https://tapir.softwaremill.com/en/latest/tutorials/02_openapi_docs.html

https://github.com/softwaremill/tapir/blob/6b31453a178e855c7e90f261f7768a33a6637ce9/examples/src/main/scala/sttp/tapir/examples/openapi/MultipleEndpointsDocumentationHttp4sServer.scala