Update test suite for integration testing

[stevekm]

as per https://app.clickup.com/t/1w8gzt9

need to update the integration test, primarily https://github.com/mskcc/pluto-cwl/blob/master/tests/test_workflow_with_facets.py , to allow for better usage with CI (Jenkins)

• run tests with Toil + LSF instead of cwltool
• run tests with small, medium, and large real-life (scrubbed) datasets

This requires a bit of refactoring of some testing components, primarily those in the pluto submodule, along with cleanup and preparation of copies of datasets for use with testing

[stevekm]

first part of this is implemented here https://github.com/mskcc/pluto-cwl/blob/master/tests/test_workflow_with_facets.medium.py

[stevekm]

will implement the XL sized 175 pair test as well. Closing this ticket.