Created a Permutation Function in the Recursion package. Closed the issue #7322

[trynafind-sumanyu]

Issue #7322

• 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 algorithms include a corresponding test class that validates their functionality.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

❌ Patch coverage is 94.28571% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.56%. Comparing base (2616e09) to head (0c53a72).

Files with missing lines	Patch %	Lines
...java/com/thealgorithms/recursion/Permutations.java	94.28%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #7412      +/-   ##
============================================
+ Coverage     79.54%   79.56%   +0.02%     
- Complexity     7178     7190      +12     
============================================
  Files           798      799       +1     
  Lines         23467    23502      +35     
  Branches       4617     4620       +3     
============================================
+ Hits          18666    18699      +33     
- Misses         4055     4057       +2     
  Partials        746      746              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.