170 Fix all pylint errors/warnings in src.util directory. (#173)

Added the 2025 publications (#193)

Fix the missing assertion and functions identifyer name correction

Format fixes via Black for test docstrings

Merge pull request #167 from nasa/158-add-ability-for-plugin-pipeline-external-persistent-processes

Consistency fixes

Updated unit tests for service_manager and singleton

Enhanced docstrings.

Returned import accidentally deleted during rebase.

Remove unneeded docstrings

Black and Pylint fixes

First round fixes to csv_output plugin tests

Add ServiceManager to AIPlugin init and test

Removed trailing whitespace

Various refactoring (pylint/black) and the associated unit test changes