Initial WPF content migrated (#17)

* Reset branch for WPF changes

* Convert BMP to PNG; fix link-out-of-scope err

* Add snippets for WPF... 6794 files!!!!

* Add missing snippets

* update file updated between migration

* Fix paths to include

* update breadcrumb and toc

* fix index links

* fix index links

* fix index links

* fix markdown

dotnet-desktop-guide/framework/wpf/index.md

@@ -0,0 +1,32 @@
+---
+title: "Windows Presentation Foundation"
+description: Learn about the unified programming model in Windows Presentation Foundation (WPF) for building line-of-business desktop applications in Windows.
+ms.date: "01/25/2018"
+applies_to:
+  - "Windows 10"
+  - "Windows 7"
+  - "Windows 7 with SP1"
+  - "Windows 8"
+  - "Windows 8 Pro"
+  - "Windows 8.1"
+f1_keywords:
+  - "AutoGeneratedOrientationPage"
+helpviewer_keywords:
+  - "Windows Presentation Foundation [WPF]"
+  - "WPF [WPF]"
+ms.assetid: f667bd15-2134-41e9-b4af-5ced6fafab5d
+---
+# Windows Presentation Foundation
+
+Windows Presentation Foundation (WPF) provides developers with a unified programming model for building line-of-business desktop applications on Windows.
+
+- [Introduction to WPF](introduction-to-wpf.md)
+- [Getting Started](getting-started/index.md)
+- [Application Development](app-development/index.md)
+- [Advanced](advanced/index.md)
+- [Controls](controls/index.md)
+- [Data](data/index.md)
+- [Graphics and Multimedia](graphics-multimedia/index.md)
+- [Security](security-wpf.md)
+- [WPF Samples](wpf-samples.md)
+- [Class Library](class-library-wpf.md)