cpython: add support for windows #5
Description
- add msys2 to Github Workflow recipe
- install all libraries
- install all python dependencies (pkg-config, wurlitzer)
- complement setup.py with msys2/mingw libomp libs and include paths
- build .dll sucessfully (debug)
- build .dll sucessfully (optimized)
- have test suite running green
- have someone test GDI display
- build .whl successfully (without missing .dll repair in place)
- build .whl successfully (.dll repair in place)
- build .whl successfully (optimized, .dll repair in place)
- make set up for python 3.6-3.9 or so (cibuildwheel?)
- release for python 3.6
- release for python 3.7
- release for python 3.8
- release for python 3.9 (?)
- announce release
- work back in master branch so that tag-based releases trigger both windows and linux etc.. releases