Jedi DA modifications

[apcraig]

PR checklist

• Short (1 sentence) summary of your PR:
  Implement JEDI DA Modifications recommended in NOAA JEDI data assimilation #419
• Developer(s):
  jkbk2004, apcraig
• Suggest PR reviewers from list in the column to the right.
• Please copy the PR test results link or provide a summary of testing completed below.
  full test suites run on conrad, everything passes bit-for-bit. https://github.com/CICE-Consortium/Test-Results/wiki/cice_by_hash_forks#9ac1863e6b346a954d74110474e3b58d0f2345e4
• How much do the PR code changes differ from the unmodified code?
  • bit for bit
  • different at roundoff level
  • more substantial
• Does this PR create or have dependencies on Icepack or any other models?
  • Yes
  • No
• Does this PR add any new test cases?
  • Yes
  • 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.)
  • Yes
  • No, does the documentation need to be updated at a later time?
    • Yes
    • No
• Please provide any additional information or relevant details below:

See #419.

Updated the cart, rake, and spacecurve decompositions to compute blockCnt and blockIndex like the other decompositions. This is not needed, but the fact they weren't computed may have created some memory issues in the JEDI DA.