NewOpenAPIData creates a new `Resources` out of the openapi document.

NewOpenAPIGetter returns an object to return OpenAPIDatas which reads from a server, and then stores in memory for subsequent invocations.

CachedOpenAPIGetter fetches the openapi schema once and then caches it in memory.

OpenAPIResourcesGetter represents a function to return OpenAPI V2 resource specifications.

Resources interface describe a resources provider, that can give you resource based on group-version-kind.