Add Valid Parentheses Checker algorithm

[Jccqt]

Summary of the Change:

This pull request introduces the Valid Parentheses Checker, which checks whether the given parentheses are valid. A valid parentheses should have opening braces and closing braces.

• I have performed a self-review of my code
• My code follows the style guidelines of this project
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Comments in areas I changed are up to date
• I have added comments to hard-to-understand areas of my code
• I have made corresponding changes to the README.md

[codecov]

Codecov Report

Attention: Patch coverage is 96.42857% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.17%. Comparing base (8fec042) to head (abf73c9).

Files with missing lines	Patch %	Lines
Algorithms/Strings/ValidParentheses.cs	96.42%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #512      +/-   ##
==========================================
- Coverage   95.18%   95.17%   -0.01%     
==========================================
  Files         269      270       +1     
  Lines       10894    10922      +28     
  Branches     1531     1536       +5     
==========================================
+ Hits        10369    10395      +26     
  Misses        400      400              
- Partials      125      127       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[siriak]

It's already implemented here

C-Sharp/Algorithms/Stack/BalancedParenthesesChecker.cs

Line 10 in 8fec042

public class BalancedParenthesesChecker

[Jccqt]

I see, sorry bro my bad