Added an Identifier class for IHardware, ISensor and IParameter Identifier properties.

Hardware/ISensor.cs

@@ -60,10 +60,13 @@ namespace OpenHardwareMonitor.Hardware {
     IHardware Hardware { get; }
 
     SensorType SensorType { get; }
-    string Identifier { get; }
+    Identifier Identifier { get; }
+
     string Name { get; set; }
     int Index { get; }
 
+    bool IsDefaultHidden { get; }
+
     IReadOnlyArray<IParameter> Parameters { get; }
 
     float? Value { get; }