Add support for use as an installable package

[EchoStatements]

Hi,

I've been trying out this library and found it really useful. Thanks for all the work you've put into it.

However, I did find it somewhat fiddly to integrate into my own Python environments since it's not currently set up to be used as a Python package. I'd be happy to contribute a PR to add this if you'd be interested?

Essentially, what I'm proposing is to change the way the library is set up, so that rather than having to create an environment specifically for the library, you could also install it into an existing environment with pip/poetry/uv/etc...

    # pip
    pip install git+https://github.com/privacytrustlab/ml_privacy_meter.git

    # uv
    uv add git+https://github.com/privacytrustlab/ml_privacy_meter.git

    # Poetry
    poetry add git+https://github.com/privacytrustlab/ml_privacy_meter.git

I don't think this would require huge changes: mostly adding package metadata and moving where dependencies are listed, updating documentation and a bit of thought/discussion about how to make sure your current workflows with the library aren't affected.

Let me know if this sounds like something that would be useful.

[mauseoluwasegun]

@EchoStatements i will like to work on this issue