add rabitq_use_rom parameter

[shadowao]

#686
add rabitq_use_rom parameter to disable random orthogonal matrix

[codecov]

Codecov Report

Attention: Patch coverage is 70.96774% with 9 lines in your changes missing coverage. Please review.

❌ Your patch status has failed because the patch coverage (70.96%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

@@            Coverage Diff             @@
##             main     #685      +/-   ##
==========================================
+ Coverage   91.31%   91.54%   +0.23%     
==========================================
  Files         182      186       +4     
  Lines       10870    11073     +203     
==========================================
+ Hits         9926    10137     +211     
+ Misses        944      936       -8     

Flag	Coverage Δ
cpp	91.54% <70.96%> (+0.23%)	⬆️

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Components	Coverage Δ
common	93.28% <ø> (ø)
datacell	92.74% <70.96%> (+0.68%)	⬆️
index	89.40% <96.61%> (-0.01%)	⬇️
simd	100.00% <ø> (ø)

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