Remember GUI position on next startup

[koshisan]

Just a small enhancement request, but it is always a bit annoying to move desktop windows around in VR - especially if you like to have your taskbar on the top of the screen and applications always tend to get under it...

Therefore it would be wonderful if the application could remember the position on close and restore it on next startup.

[azwjp]

I will add this feature in the next release, thank you!