Adding codeowners - Githubissues

Checklist

[x] I've read the Contributing Guidelines and the Code of Conduct
[x] I've completed the Contributor License Agreement
[x] I've ensured that all existing tests pass and added tests (when/where necessary)
[x] I've ensured that my code lints properly: (swiftlint && swiftlint autocorrect --format)
[x] I've updated the documentation (when/where necessary) and Changelog (when/where necessary)
[x] I've added the proper label to this pull request (e.g. bug for bug fixes)

Adds codeowners to project

N/A