Optimize performance of large assets

[mauricefisher64]

Changes in this pull request

This is a series of optimizations that primarily benefit large assets;

• Interleaved IO for Sha2 and Blake3 hashing
• patch API for asset handlers to directly insert manifest without needing to copy files
• remove unnecessary file copies
• no more memory buffers for large assets

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-commenter]

Codecov Report

Merging #84 (db0fbd8) into main (26f9ed1) will decrease coverage by 0.48%.
The diff coverage is 49.26%.

@@            Coverage Diff             @@
##             main      #84      +/-   ##
==========================================
- Coverage   74.44%   73.96%   -0.49%     
==========================================
  Files          66       66              
  Lines       13565    13745     +180     
==========================================
+ Hits        10099    10167      +68     
- Misses       3466     3578     +112     

Impacted Files	Coverage Δ
sdk/src/error.rs	14.28% <ø> (ø)
sdk/src/utils/hash_utils.rs	45.91% <15.30%> (-18.20%)	⬇️
sdk/src/jumbf_io.rs	84.44% <70.00%> (-2.47%)	⬇️
sdk/src/asset_handlers/bmff_io.rs	75.27% <80.89%> (+0.62%)	⬆️
sdk/src/asset_io.rs	50.00% <100.00%> (+30.00%)	⬆️
sdk/src/ingredient.rs	89.00% <100.00%> (-0.02%)	⬇️
sdk/src/manifest.rs	89.65% <100.00%> (ø)
make_test_images/src/make_test_images.rs	67.50% <0.00%> (-0.42%)	⬇️
sdk/src/store.rs	76.57% <0.00%> (-0.39%)	⬇️

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[gpeacock]

Some comments and one requested change for manifest.embed()