[ChakraCore] Add Linux support

[Pospelove]

Describe the pull request

• What does your PR fix?

  Fixes [chakracore] build failure (Linux) #15408

• Which triplets are supported/not supported? Have you updated the CI baseline?

Linux, Windows

• Does your PR follow the maintainer guide?

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

yes

If you are still working on the PR, open it as a Draft: https://github.blog/2019-02-14-introducing-draft-pull-requests/

[PhoebeHui]

@Pospelove, could you apply the following patch to fix the vcpkg.json file?

format.diff (4).zip

[PhoebeHui]

@Pospelove, thanks for your PR!

x64-linux in CI pipeline failed with following error, it looks clang is required to build chakracore on linux, if it could be replaced with depending on llvm?

CMake Error at scripts/cmake/vcpkg_find_acquire_program.cmake:535 (message):
  Could not find clang.  Please install it via your package manager:

      sudo apt-get install clang
Call Stack (most recent call first):

[Pospelove]

@PhoebeHui It seems that ChakraCore requires clang on Linux
From instructions:

su
apt-get update
apt-get dist-upgrade
apt-get install -y git build-essential cmake clang libicu-dev

[PhoebeHui]

@Pospelove, could you update the baseline version via './vcpkg x-add-version --overwrite-version chakracore"?

[PhoebeHui]

LGTM

[Pospelove]

PR breaks Windows build. ChakraCoreWindows.h is not installed. Please do not merge until I fix it.

[Pospelove]

It works