Add CMake build environment for Windows-only.  Significantly simpler than OpenPGM 1.x version.
Add CMake build environment for Windows-only.  Significantly simpler than OpenPGM 1.x version.

jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm,jdelgadoalfonso/openpgm