Add a CODEOWNERS file

[mhucka]

Is your feature request related to a use case or problem?

GitHub CODEOWNERS files allow assigning reviewer responsibilities and help automate code review assignments. This project lacks one, and given we have more than one maintainer, it's probably time to add one.

What solution or approach do you envision?

See Cirq's .github/CODEOWNERS file for examples, as well as the GitHub documentation for those files.

How urgent is this for you?

P2 – needed within two quarters

[rosspeili]

Hey @mhucka can I take this on? Any tips besides looking at Cirq implementation?

[mhucka]

Hey @mhucka can I take this on? Any tips besides looking at Cirq implementation?

@rosspeili Thank you for offering. I thought about it further, and realized this has to be done by a maintainer because it requires some fiddling with GitHub settings. Sorry!

[rosspeili]

Understood and respected @mhucka, nw at all.