Kaioretry

Changes
- Refactored sync/async Context loops implementations.

New
- tools/merge and tools/set-version scripts

Changes
- Update overall docstrings
- Opt out of typing module when deprecated
- Refactor kaioretry.retry and kaioretry.aioretry through another
decorator.
- Expose logger parameter in kaioretry.retry and kaioretry.aioretry
signatures.
- Fix return description in kaioretry.retry and kaioretry.aioretry
docstrings.

Fixes
- Make the decoration have the decorated docstring and signature for
introspection.

New

- Basic logging features to Context and Retry classes
- Add this changelog

New

- Publication on pypi with adequate classifers and stuff

New

- First release