Merge pull request #34789 from AdoHe/external_service

Automatic merge from submit-queue

create service add create ExternalName service implementation

@kubernetes/kubectl create service add ExternalName support, refer #34731 for more detail.

```release-note
kubectl create service externalname
```

hack/verify-flags/known-flags.txt

@@ -208,6 +208,7 @@ external-etcd-endpoints
 external-etcd-keyfile
 external-hostname
 external-ip
+external-name
 extra-peer-dirs
 experimental-fail-swap-on
 failover-timeout