vcpkg/ports/scnlib, branch 2019.07

vcpkg/ports/scnlib, branch 2019.07 Forked from https://github.com/microsoft/vcpkg [scnlib] Add new port (#7014) 2019-07-16T00:24:53+00:00 Daniel Marshall xandan@gmail.com 2019-07-16T00:24:53+00:00 e024dd7767f9e570274dcc0cdaeb589245f28719 * [scnlib] Add new port

* [scnlib] Add new port