beremiz

SVGHMI: Fix again clone unlinking, and this time add an "original" attribute to track the id of the original object before unlinking.
<?xml version='1.0' encoding='utf-8'?>
<ModbusServerNode xmlns:xsd="http://www.w3.org/2001/XMLSchema" Local_Port_Number="1502" Local_IP_Address="127.0.0.1"/>