cmeel-boost: Boost C++ Libraries for CMake-based Python Wheels

cmeel-boost is a cmeel distribution that packages the widely used Boost C++ source libraries. It enables Python projects that utilize `cmeel` as their build backend to seamlessly incorporate and link against Boost C++ components within their CMake-based build process. The library aims to simplify the distribution of Boost for Python wheels. Version 1.89.0 is the latest stable release, with a release cadence that often aligns with upstream Boost versions.