Support for Multiple Response Examples

[bpdev97]

Is your feature request related to a problem? Please describe.
Currently, its not possible to define multiple response body examples for a given status code with django shinobi.

Relevant OpenAPI Documentation (Search for Multiple examples in response bodies):
https://swagger.io/docs/specification/v3_0/adding-examples/

Fast API PR that implemented this feature:
fastapi/fastapi#1267

Issue from Django Ninja that had a PR:
vitalik/django-ninja#586

Describe the solution you'd like
Ideally there would be a way to define multiple response examples for a given status code. If there is interest in implementing this feature, I'd be happy to look over the PR from django ninja and get it into a reviewable state for django shinobi.