create nice sample data

Feature Request

🥅 Goal

As a user I want to quickly and easily create sample data so that I can see and demonstrate shepard's capabilities quickly.

🏅 Acceptance Criteria

1. A cli script exists to create sample data in a single command
2. The sample data hightlights shepard's capabilites

⭐ Special Testing hints

💣 Out of Scope

Large data that would enable e.g. load tests.

💡 Hints

In the cli in the directory scripts there is already a sample data creation script. This however is currently not functional because it was written for an older version of shepard. Furthermore it does not highlight many more recent shepard features.

🤔 Risks & Open Questions