Adding privacy event tags to each telemetry event. (#2879)

* Adding privacy event tags to each telemetry event.

* Moving Privacy events to Telemetry base, Removing tag values, and fixing namespaces.

* Adding documentation comments to fix style cop errors in release

* UTCReplace_AppSessionGuid boolean property to all C# telemetry events.

* Adding hardcoded version number to boot events.

* Adding reference to telemetry in settings unittest

* Adding Preview Pane events for loading w/ hardcoded version number

* Adding telemetry.h to msi for svg and markdown events

* removing unused explicit interface exception

src/modules/previewpane/SvgPreviewHandler/Telemetry/Events/SvgFilePreviewed.cs

@@ -0,0 +1,20 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Diagnostics.Tracing;
+using Microsoft.PowerToys.Telemetry;
+using Microsoft.PowerToys.Telemetry.Events;
+
+namespace SvgPreviewHandler.Telemetry.Events
+{
+    /// <summary>
+    /// A telemetry event to be raised when a svg file has been viewed in the preview pane.
+    /// </summary>
+    [EventData]
+    public class SvgFilePreviewed : EventBase, IEvent
+    {
+        /// <inheritdoc/>
+        public PartA_PrivTags PartA_PrivTags => PartA_PrivTags.ProductAndServiceUsage;
+    }
+}