* move to pyproject.toml
* Try to support and test more Python versions
* Catch more errors when creating PNG files
* Include utils and docs in the source package
* Include all Setuptool’s building functions in custom
building script
* Build generated files manually when building wheels
* Install xcffib if possible during the wheel generation
- add skip-pikepdf.patch to skip pikepdf from tests
- use LICENSE from package
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-cairocffi?expand=0&rev=54