Feature: Adding CODE_OF_CONDUCT to file

[kalyani2003]

We propose adding a comprehensive Code of Conduct to our repository to ensure
a safe, respectful, and inclusive environment for all contributors and users. This code will
serve as a guideline for behavior, promoting diversity, reducing conflicts, and attracting a
wider range of perspectives.

[kalyani2003]

@gravityblast Kindly assign me this issue #22648, I want to work on it! Thank You!