Support derived types in Fortran namelists

[maddenp-noaa]

Synopsis

Given config.yaml

a:
  b:
    i: 77
    j: 88

Old behavior:

$ uw config realize --input-file config.yaml --output-format nml
[2024-07-24T15:53:51]    ERROR Cannot realize depth-3 config to type-'nml' config

New behavior:

$ uw config realize --input-file config.yaml --output-format nml
&a
    b%i = 77
    b%j = 88
/

This involves removing the restriction on depth of NMLConfig initialization data, as any level of derived-type member access via % separators. I have added some content to the config realize CLI docs to clarify this.

Type

• Enhancement (adds new functionality)

Impact

• This is a non-breaking change (existing functionality continues to work as expected)

Checklist

• I have added myself and any co-authors to the PR's Assignees list.
• I have reviewed the documentation and have made any updates necessitated by this change.

[christinaholtNOAA]

Thanks so much for this quick-turnaround user request!