Port MachineNameTelemetryInitializer from NuGet.ApplicationInsights.Owin (#330)

Author: xavierdecoster

src/NuGet.Services.Logging/TelemetryInitializers/MachineNameTelemetryInitializer.cs

@@ -0,0 +1,28 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+
+namespace NuGet.Services.Logging
+{
+    public class MachineNameTelemetryInitializer
+        : SupportPropertiesTelemetryInitializer
+    {
+        public MachineNameTelemetryInitializer()
+            : base("MachineName", TryGetMachineName())
+        {
+        }
+
+        private static string TryGetMachineName()
+        {
+            try
+            {
+                return Environment.MachineName;
+            }
+            catch
+            {
+                return string.Empty;
+            }
+        }
+    }
+}