Match methods row and columns

[gph82]

API Break: changes the way in which the *_match methods of AlignerConsensus work:

• The lower method _match_only gets updated to trim() (which is exposed and documented)
• trim() extends the logic to handle more cases and tries to be less opinionated how to drop rows or columns
• The default is still to drop rows first, but drops can be any/all and swapped in order (columns first, then rows)
• The docstrings become heavy with different scenarios, maybe we can compact here more.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 85.90604% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.21%. Comparing base (768a2cc) to head (a288e4f).

Files with missing lines	Patch %	Lines
mdciao/nomenclature/nomenclature.py	81.70%	15 Missing ⚠️
tests/test_nomenclature.py	90.90%	6 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #56      +/-   ##
==========================================
- Coverage   96.33%   96.21%   -0.12%     
==========================================
  Files          52       52              
  Lines       14506    14621     +115     
==========================================
+ Hits        13974    14068      +94     
- Misses        532      553      +21     

Flag	Coverage Δ
unittests	96.21% <85.90%> (-0.12%)	⬇️

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