add networkpolicies placeholder

ssh-jump-host/templates/networkpolicies.yaml

+{{- range $_, $networkpolicy := .Values.networkpolicies }}
+{{ include "common.networkpolicy" (dict "Values" $networkpolicy "Chart" $.Chart "Release" $.Release) }}
+{{- end }}

ssh-jump-host/values.yaml

@@ -147,3 +147,5 @@ userKeys:
   name: ssh-user-keys # secret name
   data: {}
     # dummyUser: base64EncodedDummyUserPublicKey
+
+networkpolicies: {}