_import_package will not push the results

We may need some human review, and the :origin may differ
_import_package: + function description
import-package: + ability to change package name

Sometimes we need to create :foobar package in TheSLinux from
the :not-foobar package in the ABS. For example, we want to have
package :theslinux-keyring that has the same function as :archlinux
-keyring. To do this, we use : to specify package

  import theslinux-keyring:archlinux-keyring