Revert "experimental: simplify script to use only Visual Studio 16 2019"
Revert "experimental: simplify script to use only Visual Studio 16 2019"

This reverts commit 6594546243dd7c0fcc2e0686b2723090e7b9011b.

numba/llvmlite,numba/llvmlite,numba/llvmlite,numba/llvmlite