Add "info" priv to ListComponents() for GPO portal.

protogeni/lib/GeniCH.pm.in

@@ -874,6 +874,7 @@ sub ListComponents($)
 
     $credential->HasPrivilege( "authority" ) or
 	$credential->HasPrivilege( "resolve" ) or
+	$credential->HasPrivilege( "info" ) or
 	return GeniResponse->Create( GENIRESPONSE_FORBIDDEN, undef,
 				     "Insufficient privilege" );