Update and refactor codebase as used by SPIIR pipeline

SPIIR is currently undertaking a development initiative to integrate the SealGW package into the SPIIR GStreamer pipeline.

See the following Merge Request: lscsoft/spiir!130.

To get there, a number of changes has been made, such as:

• Formatting and linting standards (black, isort, flake8)
• Code readability and refactoring (e.g. removing comments, removing duplicate functions)
• Updates to parse the latest version of the spiir python library
• This PR merges in a set of these changes into the dev branch of this SealGW forked repository.
• Add pre-commit