Feature/line clipping algorithms

[ShikariSohan]

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized it.
• [x] All filenames are in PascalCase.
• [x] All functions and variable names follow Java naming conventions.
• [x] All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• [x] All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 29 lines in your changes missing coverage. Please review.

Project coverage is 55.53%. Comparing base (357fc6a) to head (8be5a23). Report is 371 commits behind head on master.

Files with missing lines	Patch %	Lines
...ava/com/thealgorithms/lineclipping/utils/Line.java	30.76%	6 Missing and 3 partials :warning:
...va/com/thealgorithms/lineclipping/utils/Point.java	30.76%	6 Missing and 3 partials :warning:
...om/thealgorithms/lineclipping/CohenSutherland.java	87.03%	6 Missing and 1 partial :warning:
...va/com/thealgorithms/lineclipping/LiangBarsky.java	88.88%	2 Missing and 2 partials :warning:

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5580      +/-   ##
============================================
+ Coverage     55.42%   55.53%   +0.11%     
- Complexity     3492     3520      +28     
============================================
  Files           540      544       +4     
  Lines         15609    15725     +116     
  Branches       2965     2991      +26     
============================================
+ Hits           8651     8733      +82     
- Misses         6599     6621      +22     
- Partials        359      371      +12     

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