Give dac user wheel access

This is needed for the fs-ansible that runs

Author: JohnGarbutt

fake-dac-ansible/roles/data-acc/tasks/systemd.yml

@@ -12,7 +12,7 @@
   user:
     name: '{{data_acc_user}}'
     group: '{{data_acc_group}}'
-    groups: etcd # Get access to etcd private key
+    groups: etcd,wheel # Get access to etcd private key, and sudo for ansible
     home: '{{data_acc_data_dir}}'
     state: present