Merge pull request #3143 from RosettaCommons/vmullig/buried_unsat_score_incremental_merge_3
Incremental merge 3: Add a visualizer for buried polar groups (for use with buried_unsatisfied_penalty)
Tasks:
- [x] Add the visualizer (a SimpleMetric).
- [x] Integration test.
- [x] For symmetry, too.
- [x] Debug integration test.
- [x] Beauty.
- [x] Make changes suggested by Jared.
- [x] Check tests on test server.
- [x] Documentation.
- [x] Pull request #3140 must be merged before this one.