Aiocli

- Docs updated.
- Development dependencies updated.

- Cache dependencies.
- Added docs: https://ticdenis.github.io/python-aiocli/

Fixed --version command and removed invalid -v command.

v.1.2.2

- Fixed compatibility issues with Python 3.6 and Python 3.7.
- Added unit and integration tests.
- Change Poetry by setup.py.
- Added pre-commit hook.