Update to latest vcpkg

[brc-intelight]

Updated to latest vcpkg version (as of a few days ago) from https://github.com/Microsoft/vcpkg.

The method I used:

$ git clone https://github.com/Intelight/vcpkg.git intelight-vcpkg
$ git clone https://github.com/Microsoft/vcpkg.git msvc-vcpkg
$ cd intelight-vcpkg
$ git remote add msvc-vcpkg ../msvc-vcpkg
$ git fetch msvc-vcpkg master
$ git checkout -b update-to-latest-vcpkg
$ git merge --no-commit --no-ff msvc-vcpkg/master
$ git reset -- ports
$ git checkout ports
$ git clean -f -d
$ git commit

Then run vendor-build.ps1. This resulted in gtest and bzip2 not building correctly for whatever reason so I went and removed the intelight gtest and bzip2 versions from the ports directory and copied over the Microsoft versions.

[dcrawford1]

looks good. so is boost at the same version 1.63.0 as it was before? Do we still get the compile warnings in VS2017. What is the advantage we get by pinning the ports directory but moving everything else forward?

[brc-intelight]

@dcrawford1
Yeah, I only changed the stuff in the ports directory that was required to get things to build (gtest and bzip2) so boost is still complaining. The big bonus we get with this is that it works with the recent msvc toolsets. Our old vcpkg couldn't find msvc compiler on my machine due to me having too new a version.

I think updating the ports should be a separate change that makes sure we're using the same versions across buildroot, alpine dev, and vcpkg, so we should probably coordinate for that change.

[dcrawford1]

ok, sounds good.