Import the source code for Window Walker (#1177)

Import the codebase for Window Walker 

- Not loaded into the module list 
- Not added it to the installer list.

src/modules/windowwalker/app/Window Walker/StyleCop.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "https://raw.githubusercontent.com/DotNetAnalyzers/StyleCopAnalyzers/master/StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json",
+  "settings": {
+    "documentationRules": {
+      "companyName": "Microsoft Corporation",
+      "copyrightText": "Copyright (c) {companyName}\r\nThe {companyName} licenses this file to you under the MIT license.\r\nSee the LICENSE file in the project root for more information.  Code forked from Betsegaw Tadele's https://github.com/betsegaw/windowwalker/",
+      "xmlHeader": false,
+      "headerDecoration": "",
+      "fileNamingConvention": "metadata",
+      "documentInterfaces": false,
+      "documentExposedElements": false,
+      "documentInternalElements": false
+    },
+    "layoutRules": {
+      "newlineAtEndOfFile": "require"
+    },
+    "orderingRules": {
+      "usingDirectivesPlacement": "outsideNamespace"
+    }
+  }
+}