To cleanup appveyor.yml and to match macOS/Linux scripts:
- Move install code to appveyor/windows/install.ps1
- Move after_build code to appveyor/windows/after_build.ps1
Continuation of 40db2bc8ec
Build configuration for Windows was moved from appveyor.yml to appveyor/windows/before_build.ps1
and based on gcconfig.pri.in to match the other platforms, Python config is taken from PATH too.
We could do the same with install and after_build too.
Co-authored-by: Alejandro Martinez <amtriathlon@gmail.com>
