Setup package build

[mtwharmby]

This is a two stage feature:

1. pyproject toml needs to be set-up to allow the project to be built as a package.
2. Setup building a complete Windows installable
   • Two options for this are portable executable or full install (favour full install)

[mtwharmby]

Basic pyproject.toml is setup. Need to work out how to create Windows executable.

[mtwharmby]

For package build, following resources look helpful:

• https://www.pythonguis.com/tutorials/packaging-pyqt5-pyside2-applications-windows-pyinstaller/
• https://www.blog.pythonlibrary.org/2021/05/27/pyinstaller-how-to-turn-your-python-code-into-an-exe-on-windows/
• https://sourceforge.net/projects/nsis/