v0.5.0 - Pre-Commit, Dockerfile Adjustment

feature: pre-commit

rationale: consistent linting (flake8), import & formatting standards (isort, black), enforced on every commit.

fix: use --no-root option in Dockerfile

rationale: from-cache building facilitated by adding --no-root to build step.

update: dependencies

list of added dependencies

• isort - import sorting
• pre-commit - application of commit hooks