feat: add PatienceSort

[alxkm]

Implementation for PatienceSort

Adding standard test for it

Update DIRECTORY.md

• 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

All modified and coverable lines are covered by tests ✅

Project coverage is 41.25%. Comparing base (08db744) to head (def0a41).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5288      +/-   ##
============================================
+ Coverage     41.10%   41.25%   +0.14%     
- Complexity     2526     2540      +14     
============================================
  Files           519      520       +1     
  Lines         15413    15449      +36     
  Branches       2947     2953       +6     
============================================
+ Hits           6336     6373      +37     
  Misses         8782     8782              
+ Partials        295      294       -1     

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[alxkm]

This PR provide implementation for this issue