Add Windows CI

[afonso360]

👋 Hey,

With the upgrade to Cranelift 0.88 we can now enable MSVC in the build script and add some CI. This also adds CI for MinGW on Windows, which I didn't expect to hit so many issues, but it turns out MinGW is even more broken than I thought.

A summary of issues / tests disabled:

• The JIT is still broken, so we disable all JIT tagged tests on windows
• bench.simple-raytracer
  • This is disabled due to hyperfine failing with an invalid preparation command
    Its just a build system issue.
• test.regex-shootout-regex-dna
  • This fails with a different output than expected
    The actual file is mostly the same, I think this is just different line endings
• abi-cafe patch
  • We've dropped the previous patch, in favour of the default config for disabling the i128 windows abi issues
    But it looks like its not broad enough since x86_64-pc-windows-gnu still fails, so we temporarily disable those
    I'm going to follow up with abi-cafe to disable those tests on MinGW as well
• rand patch
  • There are a bunch of tests failing on rand, these only affect x86_64-pc-windows-gnu presumably due to some broken implementations on the MinGW side? I haven't investigated this too far.

cc #977

[bjorn3]

Thanks! Will merge once CI passes.