build(chore): reorganize and update project dependencies and document…

…ation

added packages/requirements.txt and packages/requirements-dev.txt to organize dependencies and separate development requirements.
added packages/poetry.md to document the usage of Poetry for dependency management.
deleted the old requirements.txt from the root directory to align with the new structure.
modified pyproject.toml to reflect updates in project dependencies.
updated poetry.lock to lock the new dependencies and ensure consistency with the updated pyproject.toml.

sageteamorg / django-sage-tools