Pytoughreact

- Update documentation
- Correct License problem on PyPI

- Fix PyTOUGH Installation issues
- Use pyproject.toml as packaging standard
- Remove unnecessary files from repository

Official release of PyTOUGHREACT for use. See repo and documentation (https://pytoughreact.readthedocs.io/en/latest/) for instructions on how to use.

What's Changed
* Merge changes from master-refactor into master by temmy222 in https://github.com/temmy222/PyTOUGHREACT/pull/1
* Merge changes to main refactor branch by temmy222 in https://github.com/temmy222/PyTOUGHREACT/pull/2
* Refactor of code completely by temmy222 in https://github.com/temmy222/PyTOUGHREACT/pull/3
* Code works appropriately subject to a few testing for version 1.0

New Contributors
* temmy222 made their first contribution in https://github.com/temmy222/PyTOUGHREACT/pull/1

**Full Changelog**: https://github.com/temmy222/PyTOUGHREACT/commits/v0.0.15