PCE: Add serial number as paramter

pcelectric/integrationpluginpcelectric.cpp

@@ -70,6 +70,7 @@ void IntegrationPluginPcElectric::discoverThings(ThingDiscoveryInfo *info)
 
             ParamList params;
             params << Param(ev11ThingMacAddressParamTypeId, result.networkDeviceInfo.macAddress());
+            params << Param(ev11ThingSerialNumberParamTypeId, result.serialNumber);
             // Note: if we discover also the port and modbusaddress, we must fill them in from the discovery here, for now everywhere the defaults...
             descriptor.setParams(params);
             info->addThingDescriptor(descriptor);

pcelectric/integrationpluginpcelectric.json

@@ -23,6 +23,13 @@
                             "type": "QString",
                             "inputType": "MacAddress",
                             "defaultValue": ""
+                        },
+                        {
+                            "id": "db834ca7-934a-473b-8bd8-c641ff0ea879",
+                            "name":"serialNumber",
+                            "displayName": "Serial number",
+                            "type": "QString",
+                            "defaultValue": ""
                         }
                     ],
                     "settingsTypes": [