Add two-phase commit use case

[Baptouuuu]

Fix #60

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.35%. Comparing base (fd3a7b1) to head (2fd3c38).
⚠️ Report is 2 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop      #67      +/-   ##
=============================================
+ Coverage      97.31%   97.35%   +0.03%     
  Complexity       964      964              
=============================================
  Files            123      123              
  Lines           5370     5370              
=============================================
+ Hits            5226     5228       +2     
+ Misses           144      142       -2     

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