Pyterminate

What's Changed
* Improved/fixed reference handling so that all references to registered functions will be removed after unregistration or execution (previously dangling) by cygann in https://github.com/jeremyephron/pyterminate/pull/5.

**Full Changelog**: https://github.com/jeremyephron/pyterminate/compare/v0.0.7...v0.0.8

What's Changed?
- Fixed improper type annotations

**Full Changelog**: https://github.com/jeremyephron/pyterminate/compare/v0.0.6...v0.0.7

What's Changed
- Add py.typed marker for mypy

**Full Changelog**: https://github.com/jeremyephron/pyterminate/compare/v0.0.3...v0.0.6

What's Changed
- New `exit_with_signal` decorator, specifically for handling multiprocessing start method fork exit behavior
- Ignores requested signals during execution of registered function

**Full Changelog**: https://github.com/jeremyephron/pyterminate/compare/v0.0.2...v0.0.3

New Features
- Added feature for raising `KeyboardInterrupt` on `SIGINT`
- Added more tests
- Added documentation

New Features
- Initial package functionality