Exploratory analysis to try to find the best way to get ORDO<->ICD11Foundation mappings.

Exploratory analysis to try to find the best way to get ORDO<->ICD11Foundation mappings.

- Add: New release output: ordo-icd11.sssom.tsv
  - Completed work in mappings.py
  - Add: utils.py for this: This file now has several functions that are exactly the same in several repositories. Needs to be put into a package.
- Update: config/icd11.sssom-metadata.yml: removed some unnecessary entries. Added necessary ones.
- Add: requirements*.txt files: for installation of Python packages; and updated readme about that.
- Delete: Temporary anlalysis files in src/compare_*/
- Add: icd11mms-exact-matches.sparql for querying ordo.owl for mappings. But this may not be necessary and may get removed.
- Add: src/temp_compare_matches_owl_and_nomenclature.py: Temporary file for analysis for comparing Ordo->ICD11MMS exact matches from nomenclature file and from OWL release.
- Bug fix: run.sh: Updated to an older version that works.

- Delete: Unnecessary files and goals: temp analysis, getting of ordo.owl and querying it via SPARQL.
- Add: SSSOM validation
- Update: Replaced ad hoc SSSOM utilities with the ones from sssom-py
- Add: mondo-icd11 mappings
- Rename: SSSOM files: icd11 -> icd11foundation