fixes #10403 - resync names of unmanaged hosts to their primary NIC

MoveHostNicsToInterfaces previously ignored unmanaged hosts, but they
need migrating too. Updated the existing migration to migrate both,
then for existing hosts, add a new migration to ensure all primary NIC...

Fixes #10307 - editing host with 'unattended: false' no longer results in error

(cherry picked from commit ae274f95193c3147ad563da075d0a36fb1bcff20)

fixes #10298 - handle destroyed but present interfaces

When deleting a host and DHCP orchestration is removing reservations for NICs,
it generates a dhcp_record that contains next-server data. Determining the
next-server IP causes the primary interface to be fetched for DNS resolution,...

fixes #10168 - delegate fqdn/shortname to primary interface

(cherry picked from commit 4d5b979541902c2163d98ca8fd53d230445b60ac)

Fixes #10111 - Use a dummy primary interface for unmanaged hosts

Unmanaged hosts require a host interface due to delegation of networking
attributes, and some others like 'name'. Since unmanaged hosts do not
necessarily have an interface associated (unless created through puppet...

Fixes #10025 - move generic taxonomies code to base class

(cherry picked from commit bf75590c49c05dd780df388908598c85fc8f53bd)

Fixes #9947 - restrict user taxonomies if none is set

(cherry picked from commit abe910f2a46f4ecc1f349263d0b4751ed46ff200)

Fixes #8890 - Allow selection of plaintext "encryption" method for root password

(cherry picked from commit 331ff165939399787022e77ad17778e2ac39c148)

Fixes #9618 - make identifier uniq per host

(cherry picked from commit f2d5f95539b5070f5c7aba37196c45346140357d)

Fixes #8316: Removing a host can create a huge transaction

(cherry picked from commit 3e7507198f25b41b90a55115671fe0edd495f531)