KMP & RabinKarp in Strings

[pranavsuriya-sr]

Added the following Pattern Matching Algorithms in Strings:
1. KMP Algorithm
2. Rabin Karp Algorithm
Created a folder named Pattern-Matching and added the two programs. File format and language used : C++.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature/code (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checks

• Solution file
• README.md added
• README.md already exists

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works

[pranavsuriya-sr]

Please review my pr and merge it.

[github-actions]

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