Automatic merge from submit-queue
enable resource name and service account cases for impersonation
Adds the resource name check since that attribute was added for authorization. Also adds a check against a separate resource for service accounts. Allowing impersonation of service accounts to use a different resource check places control of impersonation with the same users to have the power to get the SA tokens directly.
@kubernetes/kube-iam
@sgallagher FYI
1a1229e206