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/obj/group.epp

@@ -0,0 +1,5 @@
+[[groups]]
+  name = "<%= $name %>"
+  gidnumber = <%= $gidnumber %>
+  <% if $includegroups.length > 0 { %>includegroups = [<% $includegroups.each |Integer $group| { %><%= $group %>, <% } %>]<% } %>
+