Addition of Poethepoet package as task runner manager

[qlrd]

Description

It add the:

• poethepoet module to pyproject.toml;
• little changes on README.md to substitute format, linting and test sections.

Poe the poet

Poethepoet is a nice task runner that works well with poetry.

I defined some tasks that can be called with:

• poetry run poe format (execute black in ./src and ./tests with one command);
• poetry run poe lint (execute pylint in ./src)
• poetry run poe test (execute pytest --cache-clear --cov src/krux --cov-report html ./tests)
• pre-commit (run the tasks above in sequence).

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other: tools for speedup repetitive development tasks