refactor: BinaryToOctal

[alxkm]

Improving the code to make it more readable.
Adding additional tests to this algorithm.

• 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 43.07%. Comparing base (25b6aeb) to head (cd01525).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5338      +/-   ##
============================================
+ Coverage     43.05%   43.07%   +0.02%     
- Complexity     2669     2673       +4     
============================================
  Files           522      522              
  Lines         15472    15469       -3     
  Branches       2952     2953       +1     
============================================
+ Hits           6661     6663       +2     
+ Misses         8526     8521       -5     
  Partials        285      285              

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

[BamaCharanChhandogi]

Overall, the updated code looks great, but I suggest adding input validation to ensure the input is a valid binary number. Also, consider enhancing the test cases to cover potential edge cases like invalid inputs.

[BamaCharanChhandogi]

LGTM, Thanks.