templates - sync from community-templates

Fixes #15066 - operating systems and ovirt < 3.6

The operating systems endpoint was added in ovirt 3.6
https://bugzilla.redhat.com/show_bug.cgi?id=1050243. Older versions
were failing getting 404 when provisioning.

This patch adds a check for this case. We also cache the operating...

Fixes #14546 - ability to restrict *_external_variables
Fixes #14535 - corrects permissions for smart class parameters

fixes #14905 - enable DHCP orchestration with any boot mode

DHCP orchestration remains useful to set up PXE booting to start the
provisioning process, even when a static boot mode because the boot mode
is typically applied later through templates. It's also useful in image...

templates - sync from community-templates

fixes #10956 - add annotation support for vmware

fixes #3910 - add cdrom drive support for vmware

Refs #13741 - Hidden values use masked input for default value

This was missed in the pervious commit. Opening a hidden lookup key led
to the default value being displayed using a password input instead of
as a masked text area.

Fixes #15047 - Improve audit email details

Refs #3809 - Turning on some rubocop cops