Add initial code for remaining "repmgr standby" commands

repmgr-action-standby.c

@@ -1009,9 +1009,41 @@ do_standby_unregister(void)
 	log_info(_("standby unregistration complete"));
 
 	return;
-
 }
 
+
+void
+do_standby_promote(void)
+{
+	return;
+}
+
+void
+do_standby_follow(void)
+{
+	return;
+}
+
+void
+do_standby_switchover(void)
+{
+	return;
+}
+
+
+void
+do_standby_archive_config(void)
+{
+	return;
+}
+
+void
+do_standby_restore_config(void)
+{
+	return;
+}
+
+
 static void
 check_source_server()
 {