Fix field utils tests

[darianboggs]

Description

There were problems in the tests in field_utils for Test_FieldArithmetic.pf and Test_FieldBLAS.pf:

1. Mismatch between Fortran array and ESMF_Field values
2. Incorrect parallel tests

Tom fixed this in release/MAPL-v3. This PR brings in those changes, and only those changes, from release/MAPL-v3. Also, it removes variables in field_utils_setup.F90 that were no longer needed for the tests. The variables were module-level, and they were present in procedure argument lists and calls to those procedures. Nonetheless, the important changes are those that address items 1 and 2 above.

Related Issue

Motivation and Context

Tests were crashing, and the tests weren't actually performing the desired validation.

How Has This Been Tested?

This PR was tested by the MAPL tests.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Trivial change (affects only documentation or cleanup)

Checklist:

• I have tested this change with a run of GEOSgcm (if non-trivial)
• I have added one of the required labels (0 diff, 0 diff trivial, 0 diff structural, non 0-diff)
• I have updated the CHANGELOG.md accordingly following the style of Keep a Changelog

[darianboggs]

This PR fixes issue #2549, and it replaces (closes) PR ##2551.

[mathomp4]

Woo! All pass! 👍🏼