Configure pre-commit tool for this repo

[webknjaz]

Rules:

1. DO NOT commit to master. ever.
2. ABSOLUTELY NO force pushes allowed for public non-feature branches.
3. For every feature, create a new branch matching name feature/<issue-number>-<feature-name>.
4. Submit every feature by creating Pull Request @ github, after that wait for review, fix issues, repeat until approved. If needed rebase the branch on top of master and re-push force it.

• [ ] I HAVE READ AND UNDERSTOOD THE RULES ABOVE

• [ ] Install pre-commit locally as follows:

  python3.8 -m pip install pre-commit --user
  python3.8 -m pre_commit install

• [ ] Create branch called feature/pre-commit-integration
• [ ] Add .pre-commit-config.yaml config, containing the following hooks:
  • [ ] no-commit-to-branch
  • [ ] add-trailing-comma
  • [ ] remove-tabs
  • [ ] trailing-whitespace
  • [ ] check-merge-conflict
  • [ ] double-quote-string-fixer
  • [ ] requirements-txt-fixer
  • [ ] check-yaml
  • [ ] check-docstring-first
  • [ ] end-of-file-fixer
  • [ ] name-tests-test
  • [ ] check-ast
  • [ ] debug-statements
  • [ ] flake8
  • [ ] pydocstyle
  • [ ] pylint using "local" mode
  • [ ] mypy
• [ ] Check repo using command pre-commit run --all-files, fix all issues and commit fixes as well
• [ ] Create PR with this branch