WIP: Add windows CI

[wiktor-k]

This is just an experiment to see how far can we go with building the crate on Windows using code from #523.

I'll try to push it as far as possible and when we're done we can merge that back to the target PR.

[wiktor-k]

Okay, I guess that's it for today. The build complains about missing v141_clang_c2 toolset and I can't find an easy way to install it.

I've made the following adjustments, that should be resolved:

• changed the SDK minor version from 17134 to 17763 because of that one having an ISO here and as such easily installable in GitHub actions. I had to also adjust tpm-tss2 to be less picky about the SDK version.
• I've made the msbuild search for any version.

Well... that's it for today... see you later~ 👋

[uglyoldbob]

I think the v141_clang_c2 toolset might only exist in visual studio 2017.