Adding postservice to update configuration cache

We need to update the configuration cache to apply the
configuration modifications

postservice/99-lemonldap-ng

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# Updating Configuration cache
+
+cmd="/usr/share/lemonldap-ng/bin/lemonldap-ng-cli update-cache"
+opt="update-cache"
+
+res=$(${cmd} ${opt} 2>&1)
+exit ${?}