[CHANGELOG] Update to 2020.06.15 (microsoft#11977)

VCPKG April Update

VCPKG January Update

Remove vtk:x64-linux result in baseline (microsoft#9389)

* Remove vtk:x64-linux=fail from baseline

* trigger CI test

[ppconsul] Upgrade to latest version (microsoft#9104)

[wordnet]add a new port (microsoft#8816)

* [wordnet]add a new port

* [wordnet]fix-uwp

[mathc] Add new port (microsoft#8394)

[glib] Fix install config.h (microsoft#7963)

* [glib] Fix install config.h

[OpenMPI] add a new port (microsoft#7142)

* [OpenMPI] add a new port

* [OpenMPI] enable VCPKG_CONCURRENCY

* [OpenMPI] fix prefix

* [OpenMPI] fix license installation, compatible with single config build

* [many ports] enable portable mpi implementation

* [bond] Update Haskell stack SHA512

[vcpkg_configure_cmake] Add NO_CHARSET_FLAG option (microsoft#7074)

* [vcpkg_configure_cmake] Add NO_CHARSET_FLAG option

* [vcpkg_configure_cmake] Add documentation for new NO_CHARSET_FLAG option

* [vcpkg_configure_cmake, windows toolchain] Handle NO_CHARSET_FLAG in toolchain

* [build.cpp] Add Windows toolchain to package hash

* [duilib,msix,thrift,tidy-html5] Use NO_CHARSET_FLAG to fix regressions