Update to HEXL version 1.2.1#375

Merged

WeiDaiWD merged 3 commits intomicrosoft:contribfrom

fboemer:fboemer/hexl-v1.2.0

Sep 15, 2021

Commits on Aug 3, 2021

Update to HEXL version 1.2.0
fboemer
committed

Commits on Sep 2, 2021