vcpkg/ports/polyclipping, branch 2019.08

vcpkg/ports/polyclipping, branch 2019.08 Forked from https://github.com/microsoft/vcpkg [polyclipping] new port (#6636) 2019-06-03T22:09:09+00:00 Stefano Sinigardi stesinigardi@hotmail.com 2019-06-03T22:09:09+00:00 ba259efd89a03d8bf7ab4f9e1d19af870e3d06b0 * [clipper] add port * [clipper] works only if built as a static library * [clipper] rename to polyclipping

* [clipper] add port

* [clipper] works only if built as a static library

* [clipper] rename to polyclipping