Create StalinSort.java

[anant-jain01]

• 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 0% with 15 lines in your changes missing coverage. Please review.

Project coverage is 63.82%. Comparing base (ac65af4) to head (d316dda).

Files with missing lines	Patch %	Lines
.../main/java/com/thealgorithms/sorts/StalinSort.java	0.00%	15 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5737      +/-   ##
============================================
- Coverage     63.89%   63.82%   -0.08%     
  Complexity     4167     4167              
============================================
  Files           580      581       +1     
  Lines         16273    16288      +15     
  Branches       3140     3142       +2     
============================================
- Hits          10398    10396       -2     
- Misses         5452     5468      +16     
- Partials        423      424       +1     

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