[REQ][php-slim4] Map authorizationUrl/tokenUrl/refreshUrl props to OAuthAuthenticator

Created by: ybelenko

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

Current Slim4 build ignores authorizationUrl, tokenUrl and refreshUrl properties.

Describe the solution you'd like

While it's a part of API and usual HTTP request we should map these urls to API controller or OAuthAuthenticator.

Describe alternatives you've considered

Additional context

Ref to related OpenAPI spec: OpenAPI 3.1.0 - OAuth Flow Object

Related issue: https://github.com/OAI/OpenAPI-Specification/issues/557