Add ability to use GEFS replay ICs

[NeilBarton-NOAA]

Description

The PR allows the use of ICs from PSL's replay analysis. These replay ICs will be used for GEFS reforecasting and SFS. Two main changes are associated with these updates: (1) replay ICs being valid at 3Z, and (2) the use of warm starts.

This addresses https://github.com/NOAA-EMC/global-workflow/issues/1838

Type of change

• New feature

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?

• GEFS Forecast-only on Hera using replay ICs
• GEFS Forecast-only on Hera using warm start ICs
• GEFS Forecast-only on Hera using cold start ICs
• GFS Forecast-only on Hera CI test

Checklist

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