Added new message type: redhat-container-group.test.queued
    
    description:
        Testing has been queued, but not yet started.
        This message is meant to signal a product team that
        a group of containers is ready to be tested.
    
    Added new objects:
    
    - redhat-container-group.test.queued
    - redhat-container-group
    - redhat-container-image