Add option for case insensitive comparison

[tsekityam]

No description provided.

[codecov]

Codecov Report

Merging #4 (f4a2bdf) into main (e30df2b) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main       #4      +/-   ##
==========================================
+ Coverage   99.03%   99.06%   +0.02%     
==========================================
  Files           1        1              
  Lines         104      107       +3     
  Branches       37       40       +3     
==========================================
+ Hits          103      106       +3     
  Partials        1        1              

Impacted Files	Coverage Δ
src/index.ts	99.06% <100.00%> (+0.02%)	⬆️

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