At some point uplink cli lost ability to set metadata. This change brings back this functionality for 'cp' operation. https://github.com/storj/storj/issues/3848 Change-Id: Ia5f60eb577fcab8a38d94730d8cdc6e0338d3b46
Change-Id: If426c32219d32044d715ab6dfa9718807f32cb9f