feat: create glauth module

- manage config directories, config file
- manage systemd service and socket
- manage users, service accounts and groups
- manage defaults for users, services and groups
- manage packages for role

modules/glauth/templates/systemd.service.epp

@@ -0,0 +1,14 @@
+[Unit]
+Description=GLAuth Service
+After=network.target
+
+[Service]
+User=<%= $user %>
+Group=<%= $group %>
+ExecStart=<%= $bin_path %> -c <%= $config_path %>
+Restart=always
+AmbientCapabilities=CAP_NET_BIND_SERVICE
+
+[Install]
+WantedBy=multi-user.target
+Also=<%= $service_name %>.socket