Update KProj to latest version

Updated the KProj files to latest version. If this change looks okay, I will proceed to update the other repros. 

- Will only send PRs if there are any significant changes
- All commits will reference this umbrella bug https://github.com/aspnet/Home/issues/183

@BillHiebert @PradeepKadubandi please review this
@Eilon @muratg FYI