Use poetry to package our modules

To remove the requirement for us to add sys.path.append(... to all of our files to allow relative imports from other directories, we need to package our modules directory with poetry and update our pipeline yaml to pip install the modules directory as a dependency.

The existing branch should have the main setup to get started, but we'll still need to do the following.

1. Remove sys.path.appends for imports
2. Update all imports to use ironbank.pipeline relative import path
3. Update all module and stage python file to allow execution (i.e. chmod +x)
4. Update all pipeline .yaml files to install the ironbank package where applicable
   • python3 -m pip install ironbank-pipeline will install the ironbank package
5. Consider updating READMEs to explain updated dev and prod workflows

Short term plan: Prod:

1. pip install ironbank-pipeline dir

Dev:

1. poetry install
2. poetry shell or poetry run (not working on my system atm)
3. add all deps as major version deps

Longterm: Prod:

1. Build into a package or a container