resolves: RHEL-88543
Remove usage of nbdkit-cacheextents-filter
resolves: RHEL-88857
Print better mountpoint stats in debug output
resolves: RHEL-88861
Add virt-v2v -io vddk-noextents=true so we can test noextents
resolves: RHEL-88863
Remove several ancient, deprecated options
resolves: RHEL-88866
