Add ability, in Scenarios tests, to allow for testing array slices in the k direction

[pchakraborty]

Types of change(s)

• 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)
• Refactor (no functional changes, no api changes)

Checklist

• Tested this change with a run of GEOSgcm
• Ran the Unit Tests (make tests)

Description

Implement #3187
Scenarios testing - added ability to allow for testing array slices in expectations.yaml. We can now add tests like

I: {status: complete, typekind: R4, rank: 3, k_values: [40., 20., 10.]}

Related Issue