KubernetesEndpointResolver works with the name "endpoint" only

[ankurpshah]

Describe the bug
KubernetesEndpointResolver works with the name endpoint only. An override doesn't work.

To Reproduce
Following configuration doesn't work:

      ---
      apiVersion: ambassador/v1
      kind: KubernetesEndpointResolver
      name: my_endpoint
      ---
      apiVersion: ambassador/v1
      kind: Module
      name: ambassador
      ambassador_id: ambassador-80
      config:
        service_port: 8080
        resolver: my_endpoint

But this works:

      ---
      apiVersion: ambassador/v1
      kind: KubernetesEndpointResolver
      name: endpoint
      ---
      apiVersion: ambassador/v1
      kind: Module
      name: ambassador
      ambassador_id: ambassador-80
      config:
        service_port: 8080
        resolver: endpoint

Expected behavior
KubernetesEndpointResolver should work with name override.

Versions (please complete the following information):

• Ambassador: 0.60.3
• Kubernetes environment: AWS KOPS
• Version 1.14.1

[kflynn]

This worked with annotations, but CRDs had some issues around what was a legal name (see also #1562) and around Resolver CRDs with no spec.