generalize logic for coupling frazil fluxes

[eclare108213]

Draft PR for sanity review and further testing in Icepack and CICE.

• [x] Short (1 sentence) summary of your PR: Adds a new namelist parameter (cpl_frazil) and generalizes the logic for coupling frazil fluxes
• [x] Developer(s): @eclare108213
• [x] Suggest PR reviewers from list in the column to the right.
• [x] Please copy the PR test results link or provide a summary of testing completed below.

These changes have been tested in E3SM.

Base_suite with regression: 178 measured results of 178 total results 178 of 178 tests PASSED 0 of 178 tests PENDING 0 of 178 tests MISSING data 0 of 178 tests FAILED https://github.com/CICE-Consortium/Test-Results/wiki/e4bc61184b.chicoma.intel.23-09-11.142102.0

• How much do the PR code changes differ from the unmodified code?
  • [x] bit for bit
  • [ ] different at roundoff level
  • [ ] more substantial
• Does this PR create or have dependencies on CICE or any other models?
  • [ ] Yes
  • [x] No
• Does this PR add any new test cases?
  • [ ] Yes
  • [x] No
• Is the documentation being updated? ("Documentation" includes information on the wiki or in the .rst files from doc/source/, which are used to create the online technical docs at https://readthedocs.org/projects/cice-consortium-cice/.)
  • [x] Yes
  • [ ] No, does the documentation need to be updated at a later time?
    • [ ] Yes
    • [ ] No
• [x] Please provide any additional information or relevant details below:

Adds namelist parameter cpl_frazil, needed to enable E3SM's style of coupling. Uses update_ocn_f in icepack_parameters rather than icedrv_flux. Removes update_ocn_f from icedrv/step_therm2 argument lists and makes it optional in icepack_step_therm2. Changes frazil dfresh, dsalt logic to include cpl_frazil option but the calculations should be BFB backward compatible. Updates interfaces.include and documentation.

[eclare108213]

Base_suite tests passed. @apcraig please go ahead and run your complete set of tests -- thank you. I'll begin porting the driver changes into CICE.

[apcraig]

Full test suite run on cheyenne for Icepack and CICE (with the Icepack updates only). Everything is bit-for-bit and looks good.

https://github.com/CICE-Consortium/Test-Results/wiki/icepack_by_hash_forks#e4bc61184b0a9d7dd1185c7416b4e10dc0714fb2

https://github.com/CICE-Consortium/Test-Results/wiki/cice_by_hash_forks#b214bc075dcf06929ba826dda13361cc1824293a

[apcraig]

@eclare108213, I think this can be merged if you feel it's ready.