Rocky Deps: Add ecFlow Python Client

[mxkpp]

Update the Rocky dependencies image: add ecFlow Python client. This must be built from source using:

https://github.com/ecmwf/ecflow

and

https://github.com/ecmwf/ecbuild

This PR is analogous to #187. and uses the same cross-OS install_ecflow_python_client.sh.

Additions

• ecFlow Python client installation inside the existing Dockerfile.dependencies. via new shell script that builds on Rocky or Debuntu (Debian / Ubuntu), called near the bottom of the dependencies Dockerfile.

Removals

Changes

Testing

Screenshots

Notes

Todos

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows project standards (link if applicable)
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future todos are captured in comments
• Visually tested in supported browsers and devices (see checklist below 👇)
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
• Reviewers requested with the Reviewers tool ➡️

Testing checklist

Target Environment support

• Linux

[mxkpp]

Squashed and rebased

[mxkpp]

Improved the ecFlow build following discussion with team. Re-squashed.

[mxkpp]

I fixed one of my earlier changes which was restricting the list of boost libraries that was being installed. Now in regard to the boost libraries, this PR only adds Python and does not remove libraries needed by ngen.

I have tested this by building ngen-forcing -> ngen -> nwm-rte and running a "default" realization with that final image.

This might be ready to merge after running additional tests, lower-level tests.

[mxkpp]

Rebased against development

[cmaynard-ngwpc]

Looks good to me.