NIMROD: Potentiostat support

# Feature Description

As an instrument scientist, I would like my Metrohm Autolab Potentiostat to be accessible through IBEX.

## Explanation
The Device is already in use using manufacturer software. Scientists would like a block with some of the data the device provides so it can be saved into the nexus file.

### Additional Information

- Model [Metrohm Auto Lab PGSTAT302N](https://www.metrohm.com/en_gb/products/a/ut30/aut302n_s.html/)
- Device currently linked directly to DAE
- Relatively low priority as the existing set up is working (though higher priority than #8800 or #6095).
- A quick search suggests there is not existing EPICS community support (but I may have used the wrong keywords)
- Connection unknown, but manufacturer website suggests likely USB device

# Acceptance Criteria
_{What is the acceptance criteria of this ticket? What should the reviewer expect to be complete?}
- _Define specific conditions that must be met for the feature to be considered complete_
- _Use bullet points for clarity_
- _Ensure each criterion is unique, testable and verifiable_

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# How to Review
_{Before making a PR...}
- _Provide verbose instructions for the reviewer to test your changes_
- _Describe how you have implemented testing for this feature_
- _Provide screenshots of the feature to help the reviewer if relevant_

_{_If not applicable, write "Not applicable"_}

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_{**To the reviewer: Make sure to [update submodules](https://isiscomputinggroup.github.io/ibex_developers_manual/processes/git_and_github/Git-workflow.html)!**}

Start by investigating how the Metrohm Auto Lab PGSTAT302N connects to IBEX and whether an EPICS community driver exists. Identify the device-integration entry points and the data required in the Nexus file; completion requires defined, testable acceptance criteria for a usable block and review instructions.

Scritto dal modello di indicizzazione a partire dal testo della issue.