Create a pyproject.toml file

[vvcb]

The current project setup requires building a conda environment and then installing this module using pip install -e . for development purposes.

However, for just using the package rather than developing it, it will be good to have a pip install option even if installing directly from github.

The current setup.py file does not list the correct dependencies. Ideally, we should be using a pyproject.toml file for this.

[MattStammers]

The pip install to github is working and seems to have the core dependencies for working in a jupyter-notebook. I only had issues in VScode when I was not logged on as an administrator

[vvcb]

Fixed by 8dc40c0204dba0c9b4c4728d4c787d19af1d681e