Added new entry point in router: errorReply

The routine if called from backend will ido:

1 reply error messages to client closing or not the session
2 open a new backend connection

An action flag is passed to the routine.

server/modules/routing/debugcli.c

@@ -61,6 +61,7 @@ static ROUTER_OBJECT MyObject = {
     freeSession,
     execute,
     diagnostics,
+    NULL,
     NULL
 };