refactor: ReverseStackUsingRecursion

[alxkm]

Class cleanup.
Readability improvements.
Added tests.

• 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 47.27%. Comparing base (e1d8b6f) to head (ae2cabd).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5386      +/-   ##
============================================
+ Coverage     47.14%   47.27%   +0.12%     
- Complexity     2912     2918       +6     
============================================
  Files           525      525              
  Lines         15345    15333      -12     
  Branches       2907     2906       -1     
============================================
+ Hits           7235     7249      +14     
+ Misses         7808     7783      -25     
+ Partials        302      301       -1     

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