Validate URL parameters against OpenAPI schema

[Mark90]

Hi all, thank you for maintaining this library!

I think that validating URL parameters could be a useful feature for the pynetbox client.

For example, if a call like this is made:

  netbox = pynetbox.api()
  netbox.ipam.prefixes.filter(foo=4)

Then based on checking the params in netbox.openapi()['paths']['/api/ipam/prefixes/']['get']['parameters'] it could be determined that the parameter foo does not exist.

There would be a slight performance penalty due to retrieving the (rather large) OpenAPI schema, but that can be done once on startup.

Glancing at the pynetbox code, perhaps the validation can be done in Endpoint.filter() after the dict of filters has been determined and before creating the Request object. To not break existing applications, this validation could default to being disabled, and enabled by an extra boolean in Api.__init__.

Hoping to hear your opinions on this.