Rework how ucl manifest are generated leveraging ucl features and flua
now the ucl generation is done via a lua script which uses libucl to
ingest the template and use variables as defined in its command line.
the template will include only if it exist a ucl file named after the
package name which will complement the template or overwrite what was
defined in the template if defined in this specific ucl file
this allows to overwrite license, but add script only to the packages
who actually needs them.
As a results the post install scripts are now only added to the right
package and not also added to the subpackages like -man or -dev
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D44374
make "vital" a replaceable, which defaults to "false" and only set it for
the main clib, utilities and runtime packages, not their sub-packages
PR: 254174
Differential Revision: https://reviews.freebsd.org/D29224
Since login and login.conf moved to the utilities packages move also
the post-install related commands.
Reported by: mj-mailinglist@gmx.de
Reviewed by: bapt
