FR: Taskbar Progress Meter & Transfer Complete Notification

When doing a bunch of game management, it would be super helpful to have the smart Taskbar integration possible with versions of Windows newer than XP. Show overall transfer progress in the taskbar is pretty standard; in fact Steam is showing its download progress as I write this, which inspired the FR in the first place.

Some info I dug up about this:
https://msdn.microsoft.com/en-us/library/system.windows.shell.taskbariteminfo.progressstate(v=vs.110).aspx

Along those same lines, the other helpful usability improvement would be to have an optional "Transfer Completed" and /or "All Transfers Completed" notification sound. That way you can easily background GamePipe and not accidentally leave it sitting idle for a long time.

I'm not sure how it would work in C#, but I'd imagine you could have an option to select from the system sound options, or just select a wav or mp3 file or something.

[DjScribbles]

This is a great idea, thank you. I'll work this in at some point soon.

[DjScribbles]

I've added the Progress Bar tracker in release 0.1.7. I think for the "Transfers Completed" I'll use the Windows 10 "Toast" api to notify the user (which has it's own chime). But I haven't got that in yet.