Create Wardley Map from existing CAD AEC data

[afomi]

• https://en.wikipedia.org/wiki/Comparison_of_computer-aided_design_editors

Story

As a User
I want to add at least an additional Data Source
So I can map multiple datasets at once

Acceptance Criteria

Given a Mindmap is open
And a file with one Data Source already loaded
When I click "Add Data Source"
Then...
And I see the an additional Data Source listed for the Mindmap
And I see the additional Nodes added