Update README

[csh519]

Description

Update Maintainer section of front page README and add README file for tests directory.

• Update README of front page
• Add new README file for tests directory

How has this been tested?

• UnitTest
• Benchmark

[csh519]

@babenek
If you have more maintainer to add to README file, please let me know.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.58%. Comparing base (45e0643) to head (971bb72).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #604      +/-   ##
==========================================
- Coverage   90.63%   90.58%   -0.06%     
==========================================
  Files         129      129              
  Lines        4751     4788      +37     
  Branches      776      783       +7     
==========================================
+ Hits         4306     4337      +31     
- Misses        288      292       +4     
- Partials      157      159       +2     

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[babenek]

Agree