feat: Add FirstDifferentBit new algorithm with Junit tests

[Hardvan]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.34%. Comparing base (5d428d0) to head (7bd8468).
Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5866      +/-   ##
============================================
- Coverage     70.35%   70.34%   -0.01%     
  Complexity     4780     4780              
============================================
  Files           639      640       +1     
  Lines         17340    17342       +2     
  Branches       3337     3337              
============================================
+ Hits          12199    12200       +1     
  Misses         4680     4680              
- Partials        461      462       +1     

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