Refactored pipeline runner code to make it unit-testable (unit tests to be pushed next).
Refactored pipeline runner code to make it unit-testable (unit tests to be pushed next).

preprocessed-connectomes-project/quality-assessment-protocol,preprocessed-connectomes-project/quality-assessment-protocol,preprocessed-connectomes-project/quality-assessment-protocol,preprocessed-connectomes-project/quality-assessment-protocol,preprocessed-connectomes-project/quality-assessment-protocol