Adding PowerLauncherTelemetry events

src/modules/launcher/PowerLauncher.Telemetry/Events/QueryEvent.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.Tracing;
+using System.Text;
+
+namespace Microsoft.PowerLauncher.Telemetry
+{
+    /// <summary>
+    /// ETW Event for when the user initiates a query
+    /// </summary>
+    [EventData]
+    public class QueryEvent : IEvent
+    {
+        public string EventName { get; } = "PowerLauncher_Query_Event";
+        public double QueryTimeMs { get; set; }
+        public int QueryLength { get; set; }
+        public int NumResults { get; set; }
+    }
+
+}