Describe what a specific Cluster Stack does

[jschoone]

/kind feature

Describe the solution you'd like
As an SCS Consumer I want to know what a specific Cluster Stack does. When I choose the Cluster Stack "ferrol" I want to be sure this will look and behave the same to me on different providers.

Short Example/Idea
This Cluster Stack fulfills the SCS standards. It comes with Cilium as CNI, an ootb usable LoadBalancer and a set of standardized StorageClasses.

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Kubernetes version: (use kubectl version)
• OS (e.g. from /etc/os-release):