Feature Request: Add Windows ARM64 (aarch64-pc-windows-msvc) support #265

Summary

Currently c2pa-python does not provide prebuilt wheels for Windows ARM64 (aarch64-pc-windows-msvc).
Installing via pip install c2pa-python on a windows-11-arm GitHub Actions runner fails because
setup.py has no entry for aarch64-pc-windows-msvc in PLATFORM_FOLDERS.

Request

1. Add aarch64-pc-windows-msvc to PLATFORM_FOLDERS in setup.py
2. Publish a prebuilt wheel c2pa_python-*-py3-none-win_arm64.whl to PyPI