Set it up for a build backend

Each guide adds the SBOM to the wheels one build backend writes. It shows one of the example projects and the commands that build and check its wheel. hatchling, pdm-backend and setuptools load python-sbom as a plugin; the others get the SBOM through the wrapper backend, and Use it with any other backend covers a backend without a guide of its own.

• Use it with hatchling
• Use it with pdm-backend
• Use it with setuptools
• Use it with meson-python
• Use it with scikit-build-core
• Add an SBOM to a maturin project
• Use it with flit-core
• Use it with poetry-core
• Use it with uv-build
• Use it with any other backend