678 pydantic internal params

[d-perl]

Fixes 678
Makes all the internal param classes into pydantic models. Does not yet do it for InternalParameters because that is more complicated - new issue for this: #681

Link to dodal PR (if required): DiamondLightSource/dodal#68

To test:

1. Run tests

[codecov]

Codecov Report

Merging #682 (aaf024b) into main (461e079) will decrease coverage by 0.04%.
The diff coverage is 95.65%.

@@            Coverage Diff             @@
##             main     #682      +/-   ##
==========================================
- Coverage   89.75%   89.71%   -0.04%     
==========================================
  Files          34       34              
  Lines        1494     1498       +4     
==========================================
+ Hits         1341     1344       +3     
- Misses        153      154       +1     

Impacted Files	Coverage Δ
...ameters/internal_parameters/internal_parameters.py	97.75% <87.50%> (-1.17%)	⬇️
...emis/external_interaction/ispyb/ispyb_dataclass.py	100.00% <100.00%> (ø)

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[noemifrisina]

Tests pass (usual TimeoutErrors notwithstanding), looks okay