add pattern or example to string value in a model

[jonathan-dev]

I there any possibility to add pattern or example information like this

    properties:
      releaseDate:
        type: date
        pattern: /([0-9]{4})-(?:[0-9]{2})-([0-9]{2})/
        example: "2019-05-17"

(https://stackoverflow.com/a/64035263/6938528)

And I also would be interested in setting the format mentioned here

[jonathan-dev]

#379