The project was rewritten from scratch for `1.0`.
Changes:
- Updated CLI interface, some options were removed, please see
`pybind11-stubgen --help` for details
- Replaced regex-based signature parsing with more robust procedure
which enables to produce partially degraded signatures
- Added type parsing/replacing, including deeply annotated types
- Support implicit imports required for static analysis
- Add introspection of pure python functions
- Improved structure of test binary pybind module