Dev: Added NumberPersistence utility class to find multiplicative and additive persistance

[BanulaKumarage]

• 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.
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• 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 75.72%. Comparing base (7e29be3) to head (7a97d9e).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6612      +/-   ##
============================================
+ Coverage     75.68%   75.72%   +0.04%     
- Complexity     5754     5763       +9     
============================================
  Files           699      700       +1     
  Lines         19725    19751      +26     
  Branches       3826     3830       +4     
============================================
+ Hits          14929    14957      +28     
+ Misses         4216     4215       -1     
+ Partials        580      579       -1     

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[alxkm]

Looks good, thanks for the contribution.