added graph algorithm

[vickygit-commits]

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized it.
• [x] All filenames are in PascalCase.
• [x] All functions and variable names follow Java naming conventions.
• [x] All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• [x] 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 67.18%. Comparing base (6006025) to head (ffebf65). Report is 91 commits behind head on master.

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

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5825      +/-   ##
============================================
+ Coverage     67.10%   67.18%   +0.07%     
- Complexity     4560     4561       +1     
============================================
  Files           619      620       +1     
  Lines         17098    17142      +44     
  Branches       3296     3310      +14     
============================================
+ Hits          11474    11517      +43     
+ Misses         5168     5167       -1     
- Partials        456      458       +2     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[vickygit-commits]

I have done with JUnit tests and all Prechecks. Is there anything further needed??

[vickygit-commits]

Can anyone review this branch???