Repo does not have CODEOWNERS file

[rsmets]

What is the current behavior?
No defined code owners[1][2], so no one is automatically requested for PR reviews. Also, there is no way to tell who the maintainers are without looking at PR activity and guessing.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem.
Here is an example PR with no reviewers assigned because no code owners are defined. Also, there needs to be a way for the PR author to request reviewers - currently, there is none.

What is the expected behavior?
CODEOWNER file is defined, which automatically requests reviewers from the defined maintainers.

Software versions?
n/a

Also, considering my contributions to this repo over the last couple of years, I would like to request your consideration for maintainer status. Thank you