Added CountBitsFlip algo

[the-yash-rajput]

• 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

❌ Patch coverage is 77.77778% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.68%. Comparing base (506b6d1) to head (364a547).

Files with missing lines	Patch %	Lines
...m/thealgorithms/bitmanipulation/CountBitsFlip.java	77.77%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6603      +/-   ##
============================================
+ Coverage     75.67%   75.68%   +0.01%     
- Complexity     5740     5743       +3     
============================================
  Files           697      698       +1     
  Lines         19694    19703       +9     
  Branches       3819     3820       +1     
============================================
+ Hits          14903    14912       +9     
- Misses         4213     4214       +1     
+ Partials        578      577       -1     

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[alxkm]

Looks good. Thanks for the contribution.