85 custom regex impl

[zaibacu]

Closes #85

[codecov]

Codecov Report

Merging #86 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #86      +/-   ##
==========================================
+ Coverage   92.79%   92.80%   +0.01%     
==========================================
  Files          13       13              
  Lines         666      667       +1     
  Branches      115      115              
==========================================
+ Hits          618      619       +1     
  Misses         34       34              
  Partials       14       14              

Impacted Files	Coverage Δ
rita/engine/translate_spacy.py	84.74% <100.00%> (ø)
rita/engine/translate_standalone.py	90.21% <100.00%> (+0.10%)	⬆️

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