Use Shuffleable trait for shuffle inputs

[andyleiserson]

This is on top of #1402. It implements the Shuffleable trait for AttributionOutputs and OPRFIPAInputRow and removes the glue functions around shuffle. The amount of code is about the same, but this avoids additional copies of the input/output that were allocated in the glue functions.

If reviewing before #1402 is merged, you probably want to set a commit filter to exclude the first two commits.

[codecov]

Codecov Report

Attention: Patch coverage is 98.29787% with 8 lines in your changes missing coverage. Please review.

Project coverage is 93.46%. Comparing base (21e954d) to head (135d0fa).
Report is 36 commits behind head on main.

Files with missing lines	Patch %	Lines
ipa-core/src/ff/boolean_array.rs	92.30%	4 Missing ⚠️
ipa-core/src/protocol/ipa_prf/shuffle/mod.rs	66.66%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1397      +/-   ##
==========================================
- Coverage   93.63%   93.46%   -0.17%     
==========================================
  Files         223      223              
  Lines       37949    38320     +371     
==========================================
+ Hits        35532    35815     +283     
- Misses       2417     2505      +88     

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