consider generating Swagger from JSON schema

In #285 we updated Swagger and the schemas to be shared so there was one source of truth. There is still a gap around `patternProperties` which show up in the curations schema (and are not supported by Swagger).

There are a couple approaches we can take:

* Translating from JSON schema to Swagger using something like https://github.com/wework/json-schema-to-openapi-schema. See also the related article https://philsturgeon.uk/api/2018/04/13/openapi-and-json-schema-divergence-solved/
* Wait until OpenAPI 3.1 which *apparently* will have support for more of this

@moranthomas has been looking at this and may have some thoughts.