No merge: Initial BMFF embeddable support experiment

[mauricefisher64]

Changes in this pull request

Give a narrative description of what has been changed.

Checklist

• This PR represents a single feature, fix, or change.
• All applicable changes have been documented.
• Any TO DO items (or similar) have been entered as GitHub issues and the link to that issue has been included in a comment.

[codecov]

Codecov Report

❌ Patch coverage is 61.40351% with 132 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.52%. Comparing base (bc3f735) to head (530d394).

Files with missing lines	Patch %	Lines
sdk/src/assertions/bmff_hash.rs	36.44%	68 Missing ⚠️
c2pa_c_ffi/src/c_api.rs	67.39%	30 Missing ⚠️
sdk/src/store.rs	73.33%	20 Missing ⚠️
sdk/src/utils/hash_utils.rs	30.76%	9 Missing ⚠️
sdk/src/builder.rs	88.09%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1808      +/-   ##
==========================================
- Coverage   76.56%   76.52%   -0.05%     
==========================================
  Files         170      170              
  Lines       39514    39766     +252     
==========================================
+ Hits        30255    30432     +177     
- Misses       9259     9334      +75     

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[codspeed-hq]

Merging this PR will not alter performance

✅ 16 untouched benchmarks
⏩ 2 skipped benchmarks¹

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_{Comparing emeddable_bmff (530d394) with main (bc3f735)}

Footnotes

1. 2 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩