<chrono> formatting: extend %r, add %g %G %U %V %W - #1869

<chrono> formatting: extend %r, add %g %G %U %V %W#1869

Stephan T. Lavavej (StephanTLavavej) merged 3 commits into

microsoft:chronat2microsoft/STL:chronat2from

StephanTLavavej:chronat2_stlStephanTLavavej/STL:chronat2_stlCopy head branch name to clipboard