feat: add standard schema support for validators

[Balastrong]

This PR closes #1015

Initial support for Standard Schema using a validatorAdapter-like structure embedded in form-core

TODO:

• Make it work without explicitly adding an adapter
• Example
• Doc
• More tests
• Integrate zod (once available - might be done in another PR)
• Update valibot tests (bug in the library, already reported)

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commit: bc585e7

[codecov]

Codecov Report

Attention: Patch coverage is 96.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 86.30%. Comparing base (5473bb8) to head (bc585e7).
Report is 168 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/form-core/src/standardSchemaValidator.ts	95.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1020      +/-   ##
==========================================
- Coverage   91.55%   86.30%   -5.26%     
==========================================
  Files          21       29       +8     
  Lines         900     1146     +246     
  Branches      206      299      +93     
==========================================
+ Hits          824      989     +165     
- Misses         71      144      +73     
- Partials        5       13       +8     

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