Allow reading the aperture name and size from the device

[stan-dot]

Fixes #1032

Link to dodal PR (if required): DiamondLightSource/dodal#301

(remember to update setup.cfg with the dodal commit tag if you need it for tests to pass!)

To test:

1. Do thing x
2. Confirm thing y happens

[codecov]

Codecov Report

Attention: Patch coverage is 97.14286% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 92.88%. Comparing base (e3b7353) to head (be7bf8f).
Report is 138 commits behind head on main.

❗ Current head be7bf8f differs from pull request most recent head e6fb3fd. Consider uploading reports for the commit e6fb3fd to get more accurate results

Files	Patch %	Lines
...rion/external_interaction/ispyb/ispyb_dataclass.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1113      +/-   ##
==========================================
- Coverage   92.96%   92.88%   -0.09%     
==========================================
  Files          69       65       -4     
  Lines        3413     3343      -70     
==========================================
- Hits         3173     3105      -68     
+ Misses        240      238       -2     

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[DominicOram]

Great, thank you. Some comments in code.

I really like all the tidying up of types etc. you've done but for future reference it helps the reviewer if those are split into a different PR. With them mixed I end up looking at the changes thinking "How does this fit into the work needed for aperture changes" then realising it doesn't and instead having to shift into "Do I think is this functionally the same and tidier, is it sufficiently covered in tests to check that". It also makes it harder to work out what happened if a mistake is made in that refactoring as people may look at the release notes to work out what introduced the mistake and not expect it to part of what looks like an unrelated change.

[DominicOram]

Looks good, thanks. In the interests of getting this merged I have spun remaining issues out to #1228