Deprecate HybridBOSSE support

[RHammond2]

End support for HybridBOSSE

This PR scrubs any reference to HybridBOSSE and removes the wrapper and its client from the code base since the model is unused and causing upstream dependency management issues. It was discussed at a recent standup that it is time to deprecate support as it's increasingly unused for a variety of reasons.

PR Checklist

• RELEASE.md has been updated to describe the changes made in this PR
• Documentation - N/A, the integration was never documented, so nothing to update
  • Docstrings are up-to-date
  • Related docs/ files are up-to-date, or added when necessary
  • Documentation has been rebuilt successfully
  • Examples have been updated
• Tests pass (If not, and this is expected, please elaborate in the tests section)
• PR description thoroughly describes the new feature, bug fix, etc.

Related issues

N/A

Impacted areas of the software

HybridBOSSE references removed from:

• examples/legacy/analysis/main_usa_new.py
• examples/legacy/analysis/multi_location.py
• examples/legacy/analysis/single_location.py
• hopp/tools/analysis/bos/cost_calculator.py

Removed:

• hopp/tools/analysis/bos/hybrid_bosse.py
• hopp/tools/analysis/bos/hybridbosse_client.py

Additional supporting information

N/A

Test results, if applicable

No changes made to tested or documented software