import old sidux artwork packages

* sidux-art-aether
* sidux-art-aethir
* sidux-art-erebos
* sidux-art-gfxbootsplash
* sidux-art-gnome
* sidux-art-gnome-eros
* sidux-art-gnome-gaia
* sidux-art-gnome-nyx
* sidux-art-hypnos
* sidux-art-kde
* sidux-art-kde-eros
* sidux-art-kde-gaia
* sidux-art-kde-nyx
* sidux-art-kde-tartaros
* sidux-art-momos
* sidux-art-moros
* sidux-art-ouranos
* sidux-art-ourea
* sidux-art-pontos
* sidux-art-uranos
* sidux-art-wallpaper
* sidux-art-wallpaper-erebos
* sidux-art-wallpaper-erebos-edu
* sidux-art-wallpaper-erebus
* sidux-art-wallpaper-eros
* sidux-art-wallpaper-eros-edu
* sidux-art-wallpaper-gaia
* sidux-art-wallpaper-nyx
* sidux-art-wallpaper-nyx-edu
* sidux-art-wallpaper-tartaros
* sidux-artwork-competition
* sidux-art-xfce

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>