WIP: Adding packaging with pyproject

[ye11owSub]

I moved the build process to use the pyproject.toml file

Why it needs to be done:

• It will be possible to add dependencies for the build step (such as numpy)
• There will be a more modern way to manage linters, runtime dependencies and meta-information about the project.

Why has the current project form become a problem:

• pyproject.toml with steuptools as a backend doesn't have a standard approach to building C extensions in parallel.
• Parsing all possible paths for libraries can be resource-intensive and difficult to maintain.

I've chosen Meson because:

• Meson is a fast and user-friendly build system.
• No need for parsing files - Meson searches for dependencies itself and downloads them when needed.
• Pymol is a project that relies heavily on C/CPP extensions. So, I checked other projects in similar situations. Projects like scipy, numpy, scikit-learn and many more use Meson as their build system.