api-server: create a decorator to map a routes with an OAS version

[pcrespov]

    Q: do you have a way to define in which version a route is available? that could be cool to have a decorator ```@version0.5.0```

Originally posted by @sanderegg in #3623 (comment)

[pcrespov]

Implemented with tags in https://github.com/itisfoundation/osparc-simcore/blob/4bcaaedd4cbee86cc09431d49a26178286e04472/services/api-server/src/simcore_service_api_server/api/routes/_constants.py