653 add pointstat met office configuration

[JorgeBornemann]

Contribution checklist

Aim to have all relevant checks ticked off before merging. See the developer's guide for more detail.

• Documentation has been updated to reflect change.
• New code has tests, and affected old tests have been updated.
• All tests and CI checks pass.
• Ensured the pull request title is descriptive.
• Conda lock files have been updated if dependencies have changed.
• Attributed any Generative AI, such as GitHub Copilot, used in this PR.
• Marked the PR as ready to review.

[github-actions]

[JorgeBornemann]

Initial implementation of NG-VER METPlus PointStat configurations for the Met Office.

[jfrost-mo]

Thanks Jorge, its great to see this!

I'll probably have a chance to review towards the end of the week, so let me know if there is anything to pay particular attention to.

[JorgeBornemann]

At the moment is just sanity check of the workflow structure and the apps/wrappers. If you think it is sound, it will need someone from the Met Office who has access to the observations and forecasts files to take it over, finish the coding and test thoroughly. Any change beyond the Met Office specific files, I need to be aware of it, as it will impact other sites.

[JorgeBornemann]

One thing to pay special attention to is whether there is in this branch information that should go in the restricted repo.