[vcpkg macos ci] Switch to using our own base boxes, to fix bringing up mac machines#13619

Merged

ras0219-msft merged 9 commits intomicrosoft:masterfrom strega-nil:remove-macos-brew-install

Sep 24, 2020

+936-411

Commits on Sep 17, 2020

[vcpkg ci:osx] Remove brew install
strega-nil
committed

Commits on Sep 19, 2020

Commits on Sep 21, 2020

[mecab jxrlib] fix ports for CI
strega-nil
committed

Commits on Sep 22, 2020

[many ports] fix compile with Xcode 12 CLTs
strega-nil
committed

Commits on Sep 23, 2020

[many ports] even more Xcode 12 CLT fixes
strega-nil
committed

Commits on Sep 24, 2020