perf: cache mappers, avoid allocations, codons are arrays

[tedil]

I didn't realize we already depend on quick_cache, so perhaps replace the new cached dep with that.

The key for caching currently relies on the provider supplying consistent data_version and schema_version information.

Todo: Should depend on next seqrepo release.

[codecov]

Codecov Report

Attention: Patch coverage is 87.71930% with 14 lines in your changes missing coverage. Please review.

Project coverage is 86.34%. Comparing base (bd2b05e) to head (aae3cbb).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #172      +/-   ##
==========================================
- Coverage   87.42%   86.34%   -1.09%     
==========================================
  Files          18       18              
  Lines        7705     7145     -560     
==========================================
- Hits         6736     6169     -567     
- Misses        969      976       +7     

Files	Coverage Δ
src/data/cdot/json.rs	89.59% <100.00%> (ø)
src/mapper/altseq.rs	93.58% <100.00%> (+0.04%)	⬆️
src/mapper/cigar.rs	96.69% <ø> (ø)
src/mapper/variant.rs	91.48% <100.00%> (+0.53%)	⬆️
src/normalizer.rs	70.73% <ø> (ø)
src/sequences.rs	94.86% <75.00%> (-3.43%)	⬇️
src/mapper/alignment.rs	90.32% <75.00%> (-0.24%)	⬇️
src/data/uta.rs	89.48% <85.71%> (-2.53%)	⬇️