Thank you for the very useful library!
Few improvements:
- Better header hygiene
- Isolate `windows.h` to `.cpp` whenever possible
- Use `WIN32_LEAN_AND_MEAN`
- Remove unused headers
Tested on Windows with
```
cmake .. -DCMAKE_BUILD_TYPE=Debug -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=1
-DCMAKE_CXX_COMPILER=clang++ -DCMAKE_CXX_FLAGS="-ftime-trace -Wall -Wextra -Wpedantic
-Wno-ignored-attributes" -DCMAKE_COLOR_DIAGNOSTICS=1 -DCPPTRACE_BUILD_TESTING=1
-DCPPTRACE_BUILD_BENCHMARKING=0
```
There's a lot more that can be improved if you are interested.
---------
Co-authored-by: Jeremy Rifkin <51220084+jeremy-rifkin@users.noreply.github.com>
