Add Codeowners file

[VictoryWekwa]

Which problem is this PR solving?

• PR Fixes issue Add a MAINTAINERS/CODEOWNERS file #610 and Fixes issue Add Codeowners file #755

Short description of the changes

• Added Codeowners file

[codecov]

Codecov Report

Merging #758 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #758   +/-   ##
=========================================
  Coverage     88.88%   88.88%           
  Complexity      603      603           
=========================================
  Files            73       73           
  Lines          2259     2259           
  Branches        295      295           
=========================================
  Hits           2008     2008           
  Misses          159      159           
  Partials         92       92           

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[yurishkuro]

Please use appropriate PR titles that reflect "commit comments" guidelines in the contributing guide.

[yurishkuro]

Please use Fixes #{issue} in the description to ensure issues get auto-closed once the PR is merged.