Trap water Solution

[Moulali2004]

• 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

Attention: Patch coverage is 0% with 16 lines in your changes missing coverage. Please review.

Project coverage is 66.74%. Comparing base (e499d3b) to head (7f519ce).

Files with missing lines	Patch %	Lines
src/main/java/com/TrapWater/TrapWater.java	0.00%	16 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5928      +/-   ##
============================================
- Coverage     66.80%   66.74%   -0.06%     
  Complexity     4501     4501              
============================================
  Files           611      612       +1     
  Lines         16958    16974      +16     
  Branches       3275     3279       +4     
============================================
+ Hits          11328    11330       +2     
- Misses         5182     5197      +15     
+ Partials        448      447       -1     

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[siriak]

We don't add leetcode problems