Update Machine Ports, Add CPPs NO_CDF2, NO_CDF5

[apcraig]

PR checklist

• [X] Short (1 sentence) summary of your PR: Update Machine ports, Add CPPs NO_CDF2, NO_CDF5
• [X] Developer(s): apcraig
• [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. testing on several machines concurrently as part of pre-release testing, results are bit-for-bit.
• 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 Icepack or any other models?
  • [ ] Yes
  • [X] No
• Does this PR update the Icepack submodule? If so, the Icepack submodule must point to a hash on Icepack's main branch.
  • [ ] 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/. A test build of the technical docs will be performed as part of the PR testing.)
  • [X] Yes
  • [ ] No, does the documentation need to be updated at a later time?
    • [ ] Yes
    • [ ] No
• [X] Please document the changes in detail, including why the changes are made. This will become part of the PR commit log.

These changes are associated with the multi-machine pre-release testing for CICE.

Update Hera port, new compiler version

Add NO_CDF2, NO_CDF5, and NO_HDF5 CPP options to model to support older/other versions of netcdf. Several machines with only netcdf 4.4 do not support cdf5 format. Sometimes netcdf is not built with hdf5. We need a CPP to avoid that part of the code to allow the model to build on those machines.

Set NO_CDF5 for gaffney, koehr, mustang machines

Set NO_HDF5 for compy

Update documentation