Use SFM2 API for the impact and affected pkgs from CVE
    
    The Bugzilla whitelist field was removed due to security reasons.
    The security team introduced new API for Freshmaker to get the impact
    of CVE and the list of components affected by the CVE.
    This replaces the Bugzilla whitelist field completely.
    
    Signed-off-by: Giulia Naponiello <gnaponie@redhat.com>