feat: add ceph rgw (#380)

- start managing ceph configuration file
- manage ceph-radosgw
- merge the ceph::conf and ceph::node profiles
- ensure the ceph repos exist
- mange nginx frontend and consul service

Reviewed-on: #380

site/profiles/templates/ceph/conf.erb

@@ -0,0 +1,9 @@
+# Managed by Puppet in profiles::ceph::conf
+<% @config.each do |section, settings| -%>
+[<%= section %>]
+<% settings.each do |key, value| -%>
+<%# Convert booleans and numbers to strings, leave strings untouched %>
+<%= key %> = <%= value.is_a?(TrueClass) ? 'true' : value.is_a?(FalseClass) ? 'false' : value %>
+<% end -%>
+
+<% end -%>