Resolve "Use poetry to package our modules"

Merge Request Description

Closes #588 (closed)

Updates the pipeline to pip install the ironbank module, and remove sys.import where possible. The modules and mocks directories were moved to the ironbank/pipeline directory, with mocks going into ironbank/pipeline/test

Merge Request BOE

Risk

Pipeline failure

Rollback Plan

Revert MR

Testing

Tested on UBI8 in Mario
https://code-ib-mario.staging.dso.mil/dsop/redhat/ubi/ubi8/-/pipelines/2328