Create devdockdocker

[Reshaa21]

• 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 73.74%. Comparing base (4514887) to head (ae996d3).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6201      +/-   ##
============================================
- Coverage     73.75%   73.74%   -0.01%     
- Complexity     5273     5274       +1     
============================================
  Files           669      669              
  Lines         18282    18282              
  Branches       3528     3528              
============================================
- Hits          13483    13482       -1     
- Misses         4258     4259       +1     
  Partials        541      541              

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[vil02]

Please note that we already have:

• .devcontainer
• gitpod.