Expose client-side rate limit configuration interface

The client functions to make configuration changes are not publicly available
(require a super user) and they have username, orgname parameters like the
server-sixe functions

client/renderer/templates/90_grant_execute.erb

@@ -1,2 +1,4 @@
+<% if public_function? %>
 GRANT EXECUTE ON FUNCTION <%= DATASERVICES_CLIENT_SCHEMA %>.<%= name %>(<%= params_with_type.join(', ') %>) TO publicuser;
-GRANT EXECUTE ON FUNCTION <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>_exception_safe(<%= params_with_type.join(', ') %>) TO publicuser;
+GRANT EXECUTE ON FUNCTION <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>_exception_safe(<%= params_with_type.join(', ') %> )  TO publicuser;
+<% end %>