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/samples/snippets/visualbasic/wpf/introduction-to-wpf/introduction-to-wpf_2.vb

@@ -0,0 +1,18 @@
+Namespace SDKSample
+
+    Class Person
+
+        Private _name As String = "No Name"
+
+        Public Property Name() As String
+            Get
+                Return _name
+            End Get
+            Set(ByVal value As String)
+                _name = value
+            End Set
+        End Property
+
+    End Class
+
+End Namespace