Generate OpenApi

[GrandChaman]

To document the an API, the configuration file alone isn't enough.

It would be a nice addition to be able to generate OpenApi document (version 3) from a database connection and a configuration file.

To create the OpenApi document, the OApi is available

TODOs;

• Create a new OpenApi document from a database and possibly a configuration file
• Expose the document on a well known HTTP route (i.e. /openapi.json)