added scc grapg algorithm

[vickygit-commits]

• 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

Attention: Patch coverage is 93.18182% with 3 lines in your changes missing coverage. Please review.

Project coverage is 65.56%. Comparing base (bcf4034) to head (a89b6cf).

Files with missing lines	Patch %	Lines
...hms/graph/StronglyConnectedComponentOptimized.java	93.18%	0 Missing and 3 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5824      +/-   ##
============================================
+ Coverage     65.49%   65.56%   +0.06%     
  Complexity     4339     4339              
============================================
  Files           599      600       +1     
  Lines         16742    16786      +44     
  Branches       3212     3226      +14     
============================================
+ Hits          10965    11005      +40     
- Misses         5332     5333       +1     
- Partials        445      448       +3     

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