Document how to build and run the custom clang-tidy checks on Windows

[Qrox]

Summary

SUMMARY: Build "Document how to build and run the custom clang-tidy checks on Windows"

Purpose of change

Document how to build and run the custom clang-tidy checks on Windows, which is nowhere near straightfoward because clang, CMake, and python hate Windows.

Describe the solution

Mostly documentation. io.h was renamed to cata_io.h, because clang-tidy for some reason thinks it should include CDDA's io.h when it actually should include the system io.h header, causing compilation errors in chkjson.cpp. A python script was also added to fix errors in compile_commands.json generated by CMake and used by clang-tidy.

Describe alternatives you've considered

Wait until clang, CMake, and python hate Windows less and push a less hacky solution.