GitHub actions windows build

[Jacoby6000]

This sets up automated compilation/artifact generation for windows builds. I'll have a follow-up PR which will build on linux soon.

The primary benefit of this is having validation on every commit to master that the build works correctly, as well as having PRs automatically build and test the changeset.

You can see what this looks like on the PR I have in my repo here: Jacoby6000#1

• Note the green checkmarks next to each commit hash
• Each checkmark has an associated build and artifact that can be viewed. eg: 7572d29

You can see the built windows artifact for the commit/github actions run
And if set ENABLE_WINDOWS_RELEASES to true, you can have releases automatically attach a windows artifact, as seen in

• The release itself: https://github.com/Jacoby6000/Bolt/releases/tag/test-release
• The github actions build for that release: https://github.com/Jacoby6000/Bolt/actions/runs/11155093841

Release artifacts are currently built when a release is published and ENABLE_WINDOWS_RELEASES is true I can change this behavior if you'd like.

[Jacoby6000]

If these are changed, they will be downloaded/rebuilt as needed