Add ocean variable to ocean post-processing

[EricSinsky-NOAA]

Description

Tob has been added to the ocean variables for ocean post-processing. Tob is a variable that has been requested in the GEFS products.

Type of change

• New feature (adds functionality)

Change characteristics

• Is this a breaking change (a change in existing functionality)? NO
• Does this change require a documentation update? NO

How has this been tested?

This has been tested using the GEFS CI test case on WCOSS2.

Checklist

• Any dependent changes have been merged and published
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• New and existing tests pass with my changes
• I have made corresponding changes to the documentation if necessary

[EricSinsky-NOAA]

It looks like tob is the only variable that needs to be added for post-processing. Marking as ready for review.