If udev-rule-generator-net is installed on the system, add the interface
naming rules from this package to the initrd. If not, add the standard
udev rules.

The naming conventions for network interfaces on stage1 and stage2 must match.
See also commit: 1190de27

With this change, we simplify the created initrd image. Kernel
modules and firmware are added by make-Initrd itself. The layer
in Initrd is now one. It also allows you to unifyed configs for
bootloading with propagator and bootchain.
Config files for refind and elilo is creates in mkimage, so have
to copy initrd.img in efi/boot/ with the name full.cz.

This layer was supposed to contain the propagator version.

For use them separately.

This will allow in the future to use a different initrd option when
building images, for example dracut.
Also drop old make-inird support.

the * symbol was seen as a symbol because of the options in the shebang.