fedora-i18n: pungi for build ISOs

We will build ISOs with pungi and store it in iso/ dir..
Pungi build netinst and DVD.

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
anaconda_build: remove debuginfo pkgs

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>