Add new OptionSetPicker

[Supereg]

Add new option set picker

♻️ Current situation & Problem

This PR adds a new view that makes it easier to work with OptionSet as the selection of a Picker view. SwiftUI Picker doesn't natively support multi-selection picker. The OptionSetPicker does that by facilitating the OptionSet protocol.
Sadly we cannot fully re-use PickerStyles and needed to create our own enum-based solution. Currently we support rendering the picker as a menu or a inline view like, e.g., in a List.

⚙️ Release Notes

• Added new OptionSetPicker view.

📚 Documentation

Added documentation and added it to the DocC catalog.

✅ Testing

Added new UI tests.

📝 Code of Conduct & Contributing Guidelines

By submitting creating this pull request, you agree to follow our Code of Conduct and Contributing Guidelines:

• I agree to follow the Code of Conduct and Contributing Guidelines.

[PSchmiedmayer]

Nice job, looks really cool!

[philippzagar]

Looks fantastic! 🚀 Only some super nitty styling things.

[Supereg]

@PSchmiedmayer some runners (in this case runner 7) seem to have a problem with the software keyboard not popping up. We had that on iPhone sometimes too.

see https://github.com/StanfordSpezi/SpeziViews/actions/runs/12877056182/job/35900963614?pr=53

any chance to his might be a configuration issue?

[PSchmiedmayer]

Hmm, good question. Let me double-check this on the runner 👍

[PSchmiedmayer]

@Supereg I took a look at the runners and ensured that the connection to a hardware keyboard is disabled across all iOS simulators. Hope this fixes the issue.

[codecov]

Codecov Report

Attention: Patch coverage is 87.77778% with 22 lines in your changes missing coverage. Please review.

Project coverage is 76.68%. Comparing base (540010e) to head (a10babb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/SpeziViews/Views/Controls/OptionSetPicker.swift	87.78%	22 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #53      +/-   ##
==========================================
+ Coverage   75.46%   76.68%   +1.22%     
==========================================
  Files          54       55       +1     
  Lines        1642     1822     +180     
==========================================
+ Hits         1239     1397     +158     
- Misses        403      425      +22     

Files with missing lines	Coverage Δ
...es/SpeziViews/Views/Controls/OptionSetPicker.swift	87.78% <87.78%> (ø)

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