Generalize bit manipulation to larger integers than UInt128

[jakobnissen]

This is useful for other packages that may want to hook into this machinery, e.g. Kmers

[codecov]

Codecov Report

❌ Patch coverage is 76.47059% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.70%. Comparing base (95d9218) to head (9090a15).
⚠️ Report is 28 commits behind head on master.

Files with missing lines	Patch %	Lines
src/bit-manipulation/bit-manipulation.jl	76.47%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #346      +/-   ##
==========================================
+ Coverage   90.87%   91.70%   +0.82%     
==========================================
  Files          31       29       -2     
  Lines        2400     2844     +444     
==========================================
+ Hits         2181     2608     +427     
- Misses        219      236      +17     

Flag	Coverage Δ
unittests	91.70% <76.47%> (+0.82%)	⬆️

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[jakobnissen]

Coverage is fine, and BED failure is unrelated