Double-factorized chemistry improvements

To keep track of improvement suggestions from #1033:
* [x] Pass multiple qubit parameters by default and print a summary table.
* [x] #1662
* [ ] Add a notebook "frontend" that would load the existing Python and Q# from the "backend" files and focus on showing how to provide different parameters to RE and producing visualizations

Start by locating the existing Python and Q# backend files referenced in the issue, then review the related work in #1033 and #1662. The work is done when a notebook frontend loads those backends, demonstrates different parameters for RE, and produces visualizations.

Written by the indexing model from the issue text.