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/api.epp

@@ -0,0 +1,10 @@
+#################
+# API configuration.
+[api]
+  enabled = <%= $api_enabled %>
+  internals = <%= $api_internals %>
+  tls = <%= $api_tls %>
+  listen = "<%= $api_address %>:<%= $api_port %>"
+  cert = "<%= $api_cert %>"
+  key = "<%= $api_key %>"
+