Feature/line clipping algorithms

[ShikariSohan]

• 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 75.00000% with 29 lines in your changes missing coverage. Please review.

Project coverage is 54.50%. Comparing base (87871ef) to head (c8214e5).
Report is 1 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 ⚠️
...va/com/thealgorithms/lineclipping/utils/Point.java	30.76%	6 Missing and 3 partials ⚠️
...om/thealgorithms/lineclipping/CohenSutherland.java	87.03%	6 Missing and 1 partial ⚠️
...va/com/thealgorithms/lineclipping/LiangBarsky.java	88.88%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5580      +/-   ##
============================================
+ Coverage     53.96%   54.50%   +0.53%     
- Complexity     3387     3429      +42     
============================================
  Files           535      539       +4     
  Lines         15429    15508      +79     
  Branches       2942     2962      +20     
============================================
+ Hits           8327     8452     +125     
+ Misses         6749     6695      -54     
- Partials        353      361       +8     

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