Improved packaging by adding a pyproject.toml and setup.py

[Letgamer]

What does it implement/fix? Explain your changes.

This improves packaging on Nix, as a pyproject.toml or a setup.py is expected.

Where has this been tested?

Python Version: 3.14 Operating System: NixOS

Does this close any currently open issues?

No

Does this add any new dependency?

No

Does this add any new command line switch/option?

NO

Any other comments you would like to make?

Some Questions

• [ ] I have documented my code.
• [X] I have tested my build before submitting the pull request.