feat: add condensation function using Kosaraju's algorithm for SCCs

[anurag2204-k]

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Describe your change:

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new JavaScript files are placed inside an existing directory.
• All filenames should use the UpperCamelCase (PascalCase) style. There should be no spaces in filenames.
  Example:UserProfile.js is allowed but userprofile.js,Userprofile.js,user-Profile.js,userProfile.js are not
• All new algorithms have a URL in their comments that points to Wikipedia or another similar explanation.
• If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 131 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.35%. Comparing base (08d8c6b) to head (3174c61).

Files with missing lines	Patch %	Lines
Graphs/Condensation.js	0.00%	131 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## master #1818 +/- ## ========================================== - Coverage 85.91% 85.35% -0.57%  ========================================== Files 379 380 +1 Lines 19778 19909 +131 Branches 3015 3017 +2 ========================================== Hits 16993 16993 - Misses 2785 2916 +131 

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