[UWP] Support for interactive notification

[mrksoftware]

Please add the ability to send interactive notification from cloud code.

http://blogs.msdn.com/b/tiles_and_toasts/archive/2015/07/02/adaptive-and-interactive-toast-notifications-for-windows-10.aspx

[richardjrossiii]

This is definitely on our roadmap to support Windows 10 UWP projects. Seeing as we don't officially support it (though there is a fork which exists currently to implement it, see #91), we don't currently have back-end support for UWP push either.

This is coming, but it's definitely a roadmap project, so no ETA can be given ATM.

[mrksoftware]

This is definitely a good news! Back in the days I choosed Parse because was easy to understand and because it was multiplatform. Please continue to support the Windows environment! Thank you

[richardjrossiii]

Seeing as this will require back-end changes to implement, this is essentially on hold for now, unless someone goes and implements it for parse-server (note that @gfosco is working on traditional push for parse-server right now).