Add Windows support

[purefns]

This issue is meant to track progress on adding support for Windows systems for the following items:

• Compile/run the builder via zig build
• Compile/run all examples via zig build -Dexample=[NAME]
  • Finish all examples for each chapter #18
• All example binary/test runs work as expected
  • Finish all examples for each chapter #18
  • Skip running aarch64 binary for cross-compilation example entirely #11

[purefns]

Currently, the only example I'm running into issues with is the cross-compilation one from the Build System chapter. This is because the aarch64 binary that is built cannot easily be run on x86 Windows machines.

Windows does not have a binfmt_misc equivalent that I am aware of, but this is being looked into.

[purefns]

Windows support is looking good right now. I abandoned the effort of finding a built-in alternative to the *NIX file command as that seemed to be way more trouble than it was worth (for the famous cross-compilation example).

The best method I could find was using dumpbin.exe from Visual Studio Tools, however that did not seem feasible as it is not available on the system PATH by default, and making the end-user set that up is way too much friction for just one example.