Filterable, deep list wrapper

[tony]

High-powered list wrapper with deep filtering.

#330

[codecov]

Codecov Report

Merging #331 (c510042) into mini-queryset (f19688d) will decrease coverage by 0.07%.
The diff coverage is 87.50%.

@@                Coverage Diff                @@
##           mini-queryset     #331      +/-   ##
=================================================
- Coverage          73.35%   73.27%   -0.08%     
=================================================
  Files                 23       23              
  Lines               1820     1815       -5     
=================================================
- Hits                1335     1330       -5     
  Misses               485      485              

Impacted Files	Coverage Δ
libvcs/utils/query_list.py	83.16% <85.71%> (-0.80%)	⬇️
tests/utils/test_query_list.py	100.00% <100.00%> (ø)

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[tony]

#332