disk images and reports for encrypted desktop upgrade tests
    
    Summary:
    Encrypted desktop upgrade tests are being added to openqa_fedora,
    this generates the necessary disk image for it and handles
    result reporting.
    
    Test Plan:
    Check the tests run with the generated disk images,
    check result reporting generates appropriate ResTups.
    
    Reviewers: garretraziel
    
    Reviewed By: garretraziel
    
    Subscribers: tflink
    
    Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D923