gene_nmf: adding the gene NMF novelty libraries

[marcdubybroad]

Needed libraries:

• numpy
• scikit-learn (should include numpy)

Possible Docker impacts:

• will need a python docker image that has support for mathematical libraries
• I use python:3.8-slim-buster for the base image

Tested with command:

• pytest --log-cli-level=INFO tests/test_gene_nmf_adapter.py

[maximusunc]

Thanks @marcdubybroad. Since this doesn't actually plug into the novelty score yet, I'd like @pg427 to add to this PR with the full integration before we merge this in.

[maximusunc]

Could you also update the requirements.txt for any added dependencies please?

[maximusunc]

Closing in preference of #30