* [python3] fix build on macOS and linux

* update ci baseline

* fixes to get vcpkg up and running when behind corporate proxy

* clean up of code to check if HTTP_PROXY environment variable is set

*  fixed compiler errors for non win32 systems

* [vcpkg] Simplify HTTPS_PROXY code for WinHTTP

Co-authored-by: Robert Schumacher <roschuma@microsoft.com>

* Prevent python3 build failure

If VCPKG_BUILD_TYPE release is set inside a
triplet, then the build will fail because
the port file attempts to deal with debug
files which will never exist. The changes
in this patch allow the build to succeed
if VCPKG_BUILD_TYPE release is stipulated
using a triplet before a build of the
python3 port is initiated.

* python3 version bump

Port clean up and version number
bump.

* libxslt release triplet build fix

This patch fixes a condition where
if a debug build is disabled via
triplet, the build fails and an
empty directory error message
is sent to the console.

* support unix

* Update portfile.cmake

call vcpkg_execute_build_process instead of vcpkg_execute_required_process

* [vcpkg] Add "Homepage" field to the CONTROL files.

* add support for building hyperscan

* patch hyperscan to work with latest boost

* correct hyperscan source dir name

* speed the build by depending on only the parts of boost we actually need

* make python3 support release-only builds

* upgrade to hyperscan 5.1.0

* remove redundant disambiguate patch

* Add comments about how to build

* restore original x64-windows-static.cmake

* [hyperscan] Check linkage

* [python3] Allow DLLs without LIBs

* [hyperscan] Only static library

* [python3] Revert changes that cause regression in boost-python

* [python3] Revert changes that cause regression in boost-python