What new functionality do you need?

The idea of the feature is to bridge the regression test and global workflow namelists. By using the RT namelist template, it should make it easier for both the GW branch and the RT branch to keep up-to-date with future commits that change the global UFS namelist.

Related issues: ufs-community/ufs-weather-model#1664

What are the requirements for the new functionality?

The new functionality will rewrite the GW parsing scripts that are used to generate the input.nml file. Instead of generating an input.nml file from scratch, the new parsing files will take the global_control.nml.IN template and use atparse to create the input.nml file.

Acceptance Criteria

The final PR should have the GW scripts that use atparse to generate the input.nml from the global_control.nml.IN template.

Suggest a solution (optional)

No response