feat: move to poetry + pre commit linting

[danisc23]

Description

This PR moves from pip requirements to poetry, this way we can ensure that everyone uses same python version and dependecies.

Also adds pre-commit for formatting and linting and be more compliant with code style

Details

• Added pyproject.toml for poetry and remove requirements.txt
• Added .pre-commit-config.yaml as this repository format and linting suite
• Added a github action to check if a PR is compliant with pre-commit
• Updated README.md
• pre-commit fixed automatically most of the python and json files to be compliant with the codestyle

About pre-commit checks

General checks

• Avoid users to commit changes in master (even locally)
• Checks that JSON files are valid
• Prettify JSON files (if needed)
• Normalizes end of files and end of lines to avoid trailing whitespaces
• Ensures that the PR doesn't include any line introduced for local debugging

Python Checks

• Code is formatted automatically with black (codestyle), autoflake (remove unused imports and variables) and isort (import sorting)
• Flake8 as general linter
• Mypy for typing checks

[danisc23]

@mx0c I can't add you as a reviewer, but let me know if you have any question about this PR.

I only added one github action to check linting, but I think it's a good idea to open at least 2 more to ensure that a PR acomplish the following:

• Run unit tests (need tests first 😄 ) -> With this we can check that every function still doing what we expect from them even if something is changed, also works very good as documentation 😃
• A check that runs main.py without crashing -> The game is still working as expected in the PR
• Linting (added in this PR) -> changed code is compliant with the repository codestyle