End to End Test Refactoring. Build upon Publish Test Infrastructure and add

capability for further testing.s enter the commit message for your changes. Lines starting

test/Microsoft.DotNet.Tools.Tests.Utilities/Commands/NewCommand.cs

@@ -0,0 +1,23 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Microsoft.DotNet.Cli.Utils;
+using Microsoft.DotNet.Tools.Test.Utilities;
+
+namespace Microsoft.DotNet.Tools.Test.Utilities
+{
+    public sealed class NewCommand : TestCommand
+    {
+        public NewCommand()
+            : base("dotnet")
+        {
+
+        }
+
+        public override CommandResult Execute(string args = "")
+        {
+            args = $"new {args}";
+            return base.Execute(args);
+        }
+    }
+}