Add PDF refinement tool

Need to create CLI tool inside a container that uses the base image https://code.ornl.gov/rse/images/diffpy-cmi

The current ASRP script to do so is here: https://code.ornl.gov/neutrons/asrp/asrp/-/blob/main/asrp/auto_refine/run_pdf_fit.py

The test to verify is found here: https://code.ornl.gov/neutrons/asrp/asrp/-/blob/main/tests/auto_refine/test_pdf_fit.py