daemon: Add zstd support to guestfs_file_architecture

This is required so we can determine the file architecture of
zstd-compressed Linux kernel modules as used by OpenSUSE and maybe
other distros in future.

Note that zstd becomes a required package, but it is widely available
in current Linux distros.

The package names come from https://pkgs.org/download/zstd and my own
research.

appliance/packagelist.in

@@ -48,6 +48,7 @@ ifelse(REDHAT,1,
   vim-minimal
   xz
   zfs-fuse
+  zstd
 )
 
 ifelse(DEBIAN,1,
@@ -88,6 +89,7 @@ dnl iproute has been renamed to iproute2
   vim-tiny
   xz-utils
   zfs-fuse
+  zstd
   uuid-runtime
 )
 
@@ -115,6 +117,7 @@ ifelse(ARCHLINUX,1,
   systemd
   vim
   xz
+  zstd
 )
 
 ifelse(SUSE,1,
@@ -140,6 +143,7 @@ ifelse(SUSE,1,
   systemd-sysvinit
   vim
   xz
+  zstd
 )
 
 ifelse(FRUGALWARE,1,
@@ -185,6 +189,7 @@ ifelse(MAGEIA,1,
   systemd /* for /sbin/reboot and udevd */
   vim-minimal
   xz
+  zstd
 )
 
 ifelse(OPENMANDRIVA,1,
@@ -203,6 +208,7 @@ ifelse(OPENMANDRIVA,1,
   systemd /* for /sbin/reboot and udevd */
   vim-minimal
   xz
+  zstd
 )
 
 include(guestfsd.deps)