Add reading of binary restart with PIO for runtype=initial

[JessicaMeixner-NOAA]

Pull Request Summary

Adding capability to read WW3 restart files when using PIO and runtype=initial.

Description

For the high resolution (HR) prototypes, we want to be able to read a WW3 binary restart even though the runtype=initial. These code changes allow for that. This does not address wanting to use a NetCDF restart with runtype=initial.

Is a change of answers expected from this PR? No. Unless you are running the coupled model with runtype=initial, this will allow for ICs to now be read.

Please also include the following information:

• Add any suggestions for a reviewer: @sbanihash
• Mention any labels that should be added: new feature
• Are answer changes expected from this PR? No

Issue(s) addressed

• fixes dev/ufs-waether-model: When using PIO & NetCDF restarts, be able to read restart if runtype=initial #1358

Commit Message

Add reading of binary restart with PIO for runtype=initial

Check list

• Branch is up to date with the authoritative repository (NOAA-EMC) dev/ufs-weather-model branch.
• Checked the checklist for a developer submitting to develop.
• If a version number update is required, checked the updating version number checklist.
• If a new feature was added, a regression test for testing the new feature is added.

Testing

• How were these changes tested?
  --- UFS weather model PR: Update for WW3 initialization  ufs-community/ufs-weather-model#2585
  RegressionTests_hera.log
  --- Global-workflow test output: /scratch1/NCEPDEV/climate/Jessica.Meixner/UpdateFixandHiresIC/c48t05

• Are the changes covered by regression tests? (If not, why? Do new tests need to be added?) No. This is a ufs-weather-model issue and its also not covered by regresstion tests in ufs-waether-model. We do use this in production runs during the transition from binary-> netcdf restarts.

• Have the matrix regression tests been run (if yes, please note HPC and compiler)? No. Will do if requested.

• Please indicate the expected changes in the regression test output, (Note the list of known non-identical tests.) None.

• Please provide the summary output of matrix.comp (matrix.Diff.txt, matrixCompFull.txt and matrixCompSummary.txt):
  --- Will run if requested, currently have not been done.