Add ConvexHullTest.java for convex hull algorithm testing

[MedhaSunkad13]

• 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 0% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.48%. Comparing base (b316dcf) to head (fbf09cf).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...ava/com/thealgorithms/geometry/ConvexHullTest.java	0.00%	14 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6790      +/-   ##
============================================
+ Coverage     77.46%   77.48%   +0.02%     
- Complexity     6257     6293      +36     
============================================
  Files           725      729       +4     
  Lines         20894    20990      +96     
  Branches       4071     4089      +18     
============================================
+ Hits          16185    16265      +80     
- Misses         4075     4090      +15     
- Partials        634      635       +1     

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[github-actions]

This pull request has been automatically closed because its workflows or checks failed and it has been inactive for more than 14 days. Please fix the workflows and reopen if you'd like to continue. Merging from main/master alone does not count as activity.