WPF Responsibility Update

[gurpreet-wpf]

Hi folks,

Just for an update, responsibility for WPF has been shifted. You would be seeing our names regularly for triaging issues and merging PRs. Check this space for more updates:
@vishalmsft @singhashish-wpf @dipeshmsft @anjalisheel-wpf @ayushverma-ms @gurpreet-wpf

Thanks!