[Proposal][WinUI] Easily create dependency properties - #472

[Proposal][WinUI] Easily create dependency properties#472

Ben Stolovitz (citelao) wants to merge 4 commits into

microsoft:mastermicrosoft/wil:masterfrom

citelao:user/besto/define_dpcitelao/wil:user/besto/define_dpCopy head branch name to clipboard