Add support for VDDK 8.0.0

Rebase to new stable branch version 1.30.8
Add automatic provides generator and subpackage nbdkit-srpm-macros
New filters: blocksize-policy, protect, retry-request
Fix license of bash-completion subpackage
vddk: Fix use of uninitialized memory when computing block size
Skip vsock tests unless the vsock_loopback module is loaded
Add support for ssh create remote file.
Suppress excess messages from nbdkit-nbd-plugin
Suppress incorrect VDDK error when converting guests from vCenter
Backport new readahead filter from 1.32.
Backport new LUKS filter from 1.32.
Backport new scan filter from 1.32.
Add new Python binding for nbdkit_parse_size from 1.32
Add new rate filter burstiness setting from 1.32
vddk: Suppress new VDDK "phone home" messages
vddk: Clearer error message when thumbprint is wrong
Fix memory allocator=malloc,mlock=true
Fix multiple Coverity problems
Fix bounds error in nbdkit-checkwrite-filter

Rebase to new stable branch version 1.28.5
Move nbdkit-null-plugin to nbdkit-server package
Add asynchronous support in nbdkit-vddk-plugin
Drop obsolete documentation related to thread model in vddk plugin
Switch to xorriso (instead of genisoimage)
Distribute README.VDDK in nbdkit-vddk-plugin subpackage
Fix nbdkit-cow-filter cow-block-size=4096
file: Fix implementation of cache=none for writes
vddk: Implement VMDK creation

Rebase along stable branch to 1.26.5
Add nbdkit-vddk-plugin -D vddk.stats=1 flag
Add nbdkit-cow-filter cow-block-size parameter
Fix CVE-2021-3716 nbdkit: NBD_OPT_STRUCTURED_REPLY injection on STARTTLS
Update keyring

Remove bogus kernel hints in allocator=malloc

Fix assertion failure during server shutdown
Fix delay-close option
tests/test-debug-flags.sh: Don't use port 10809 during test

Rebuilt for IMA sigs, glibc 2.34, aarch64 flags

New upstream stable version 1.26.3.
Add Python .cleanup() method.
Fix data corruption in zero and trim on unaligned tail.

More efficient cache and cow filters.
Add nbdkit-cow-filter cow-on-read option.
Add nbdkit-cache-filter cache-on-read=/PATH.
Add nbdkit-cache-filter cache-min-block-size option.
Add nbdkit-delay-filter delay-open and delay-close options.
Reduce verbosity of debugging from virt-v2v.
Miscellaneous bugfixes

New upstream stable version 1.26.2.

Bump and rebuild

New upstream stable version 1.26.1.

New upstream version 1.26.0.

Rebuilt for Python 3.10

New upstream version 1.25.9.

Perl 5.34 re-rebuild of updated packages