Signed-off-by: NJiyoung Yun <jy910.yun@samsung.com>


Commit migrated from https://github.com/dotnet/corefx/commit/02bbc8c2f0cfaf41c2d59961c4c65bec4a54cc9d

Signed-off-by: Nchunseoklee <chunseok.lee@samsung.com>


Commit migrated from https://github.com/dotnet/corefx/commit/2a6244795ba341b449deb05f9ed452a9663c936b

This change adds portableLinux option to the src/Native/build-native.sh and also
enables its passing through from the root build-native.sh and build.sh.
This option enables or disables build of native binaries portable over
Linux distros based on glibc.

I have also modified the build-native.sh behavior for the staticLibLink option.
Before, if you ran build with this option and then later on ran the build
without this option, it was still considered as being set since the previous
value was cached. With my change, it rebuilds the binaries any time you change
the option.

Commit migrated from https://github.com/dotnet/corefx/commit/f9bedd195de47532684246f88201e6736a863909

Commit migrated from https://github.com/dotnet/corefx/commit/f21e02e94acc52694a76b8cce42feefe186cdb2d

Related with https://github.com/dotnet/coreclr/pull/6888

Commit migrated from https://github.com/dotnet/corefx/commit/c3a3681eb2b2ce0da87631e73fdce25151084f2d

Commit migrated from https://github.com/dotnet/corefx/commit/edc7b70dd5416bb875c6f933d0d10ec22620ed03

Commit migrated from https://github.com/dotnet/corefx/commit/966d960dc71dee57a5113fd575441eaceaf65217

Commit migrated from https://github.com/dotnet/corefx/commit/1f3499cc5a222d1ba1c79a64c3d934cc4baaa061

Commit migrated from https://github.com/dotnet/corefx/commit/59d7bfb13a502d9abd673d6b54063da66101a244

Commit migrated from https://github.com/dotnet/corefx/commit/868e4b99049f85acbdf572c02c8426734b001478

Commit migrated from https://github.com/dotnet/corefx/commit/0f67eecc0f718a1610e15b5c7031a3b761db4b5a

Changes to dev workflow scripts to use run command tool. 

Commit migrated from https://github.com/dotnet/corefx/commit/7e2bd07936179c192e682d979b2938b4a7e32030