Overhaul PyDesigner Code 2

[TheJaeger]

This PR fixes various reported bugs and updates documentation to tackle:

• [ ] #305
• [ ] #303
• [ ] #306
• [x] #301
• [ ] #308
• [x] Transition to Poetry
• [x] Add type hints
• [x] Overhaul docstring
• [x] Introduce pre-commit hooks
• [ ] Add pytests
• [ ] Remove redundant classes and functions

In addition, PyDesigner will undergo transition to Poetry for package management and pre-commit for hooks and tests. Automations will also be introduced to automatically publish, release, and document changes.

Another big change is to transition PyDesigner into a diffusion imaging library i.e. various functions of PyDesigner can be called for custom scripting.