User Story: As an OpenShift administrator using OCS 4.3 Multi-Cloud Object Gateway, I want to use IBM Cloud Object Storage (COS) for mirroring and virtual proxy. Content Plan: https://docs.google.com/document/d/1BOPHnBmZf7ApzSF6VoXsImaFVIwEuLgHvFEGEzfeSGg/edit?usp=sharing