Add UWP support (#139)

* Add UWP project, and generate services boilerplate

* SqliteService implementation and sqlite-net-pcl update (#bug https://stackoverflow.com/questions/45418669/xamarin-forms-pcl-assemly-issue)

* Important services implementation

* Create a shared project to host images for UWP (to keep code project clean)

* Add extensions to image names referenced by the pcl project

* Add DismissModalToolBarItem to modal pages

* moving UWP folders inside src folder

* Add DeviceInfoService implementation

* Remove dependency on BouncyCastle, and calculate key derivation using native support

* changes requested by project maintener

* Fix HasCamera property

* DeviceActionService implementation

src/App/Controls/ExtendedTableView.cs

@@ -43,7 +43,7 @@ namespace Bit.App.Controls
 
         protected override SizeRequest OnSizeRequest(double widthConstraint, double heightConstraint)
         {
-            if(!VerticalOptions.Expands)
+            if(!VerticalOptions.Expands && Device.RuntimePlatform != Device.Windows)
             {
                 var reflectionService = Resolver.Resolve<IReflectionService>();
                 var baseBaseOnSizeRequest = reflectionService.GetVisualElementOnSizeRequest(this);