Migrate to pyproject.toml

[dogukancagatay]

Proposed changes in this pull request

This PR migrates the project to pyproject.toml from setup.py.

• Added RPM SPEC file.
• Updated rpm task of the Makefile.
• It uses hatchling (and hatch) for build-system.
• The version info is gathered by hatchling via hatch-vcs plugin (PEP-440 compatible version number)

Additionally, fixes the issue related to PEP-440 compatible version string issue happening with setuptools > 66 environments (and in #51).

Type (put an x where ever applicable)

• Bug fix: Link to the issue
• Feature (Non-breaking change)
• Feature (Breaking change)
• Documentation Improvement
• Other

Checklist

Please put an x against the checkboxes. Write a small comment explaining if its N/A (not applicable)

• All the tests are passing after the introduction of new changes.
• [N/A] Added tests respective to the part of code I have written.
• [N/A] Added proper documentation where ever applicable (in code and README.md).

Optional extra information