ClusterRole[Binding] should not inherit from Role[Binding]

[Wes McNamee]

I have an overlay library that sets defaults and adds various parameters to the base functions in this library such as:

local k = (import 'github.com/bitnami-labs/kube-libsonnet/kube.libsonnet');

k {
  Role(name, namespace):: super.Role(name) {
    metadata+: {
      namespace: namespace,
    },
  },
}

I found I need to wholesale replace ClusterRole otherwise it references Role which is in my overlay now a namespaced object.

ClusterRole(name): $._Object("rbac.authorization.k8s.io/v1", "ClusterRole", name),

The only deduplication that is gained by inheriting from Role is the apiVersion. I think it would be beneficial here to decouple Role from ClusterRole.