feat: add Equal method to Option[T] for value comparison

[taman9333]

Description

Adds an Equal method to Option[T] to enable comparison of Option instances

Fixes #67

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.45%. Comparing base (1b362cd) to head (20ead60).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #84      +/-   ##
==========================================
+ Coverage   75.18%   75.45%   +0.27%     
==========================================
  Files          16       16              
  Lines        1463     1471       +8     
==========================================
+ Hits         1100     1110      +10     
+ Misses        340      338       -2     
  Partials       23       23              

Flag	Coverage Δ
unittests	75.45% <100.00%> (+0.27%)	⬆️

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