Copy metadata and options from pyproject.toml to align installation on legacy Python/pip/setuptools stacks with the modern pyproject based one. Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
Needed to avoid UNKNOWN when building with older pip/setuptools. Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>