XamlQRCode add Geometry path output

[ps30]

Type of issue

[ ] Bug
[ ] Question (e.g. about handling/usage)
[x] Request for new feature/improvement

Expected Behavior

Enhance XamlQRCode with a .toString() overload to return a string with the 2D Geometry path text.

Current Behavior

Currently only SVG text output is an option, but SVG is not compatible with Windows WPF/XAML/UWP image controls that use the Geometry path text for 2D objects. https://docs.microsoft.com/en-us/dotnet/framework/wpf/graphics-multimedia/geometry-overview

Example XAML 2D Geometry path for a plus mark "+": string IconPlusMark = "M17,13H13V17H11V13H7V11H11V7H13V11H17M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2Z";

Possible Solution

The excellent and full featured ZXing.Net https://github.com/micjahn/ZXing.Net also generates 2D bar-codes including QR Codes and can export to XAML Geometry path text strings. Perhaps someone could help port the GeometryRenderer to this project so we have a simple light-weight QR Code only solution. https://github.com/micjahn/ZXing.Net/blob/master/Source/lib/renderer/GeometryRenderer.cs