Provide a stripped down XML configuration

[tomschr]

Situation

Currently, this project doesn't include any configuration of existing projects. It relies on using the internal Gitlab project susedoc/docserv-config. However, this changes quite often.

Use Case

It's essential to have a consistent and stable configuration as it helps in many ways:

• Implementing a project config isolates it from the susedoc/docserv-config on Gitlab
• Testing becomes easier as we don't have to track down typos or any other problems.
• We can gradually extend the config without compromising production configs.
• It's faster as we don't have to process all configurations.
• Reduces the dependency and availability to susedoc/docserv-config

Possible Implementation

We should focus on a smaller, stripped down set that includes some documents from:

• SLE (15-SP7 and 16.0)
• Cloudnative
• Some SBPs