mdbx: ci-appveyor - complete matrix MSVC 2013/2015/2017.
mdbx: ci-appveyor - complete matrix MSVC 2013/2015/2017.

Change-Id: Ie7984960e83bb8e4366531665c2f5195eca6cc41

leo-yuriev/libfpta,leo-yuriev/libfpta