[pkg_complete] report #9

[Julien LAFFAYE]

Hello,
This week, I re-implemented the automatic installation of dependencies
in pkg_add(1).
I also added the support to install complete packages via pkg_add(1).

To do:
- do not abort a complete package installation if one of the packages
in the set is already installed with
the *same* version
- add support for complete packages in pkg_info (and use libarchive
for efficiency)
- tests

Regards,
Julien