setup kiwi builder

[jaromil]

Tools for the initial ISO build - also sources of inspiration for refracta fixes

• https://gitlab.mister-muffin.de/josch/mmdebstrap/
• https://documentation.suse.com/appliance/kiwi-9/html/kiwi/building-types.html
• https://osinside.github.io/kiwi/

[jaromil]

we use our own set of build scripts