In the Extension Attributes example, the OData query we use should reference at least one extension attribute. #119

Right now the query just searches based on the name of the measurement. Since this example is about extension attributes, we should update the query to actually look for something related to extension attributes. Here's the query we're using in the LabVIEW and C# examples:

var oDataQuery = "$filter=testresult/hardwareitems/any (h: h/extension/cable_length eq '1.5') and Name eq 'scope reading'";

AB#3760273