Use the MDIUtils library for the Unit tests to categorize the tests
The URL and description fields are now handled in the node rather than in the ShapeNode
Make sure the d0 content node on the main diagram is always present
Handle group nodes
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Use the MDIUtils library for the Unit tests to categorize the tests
The URL and description fields are now handled in the node rather than in the ShapeNode
Make sure the d0 content node on the main diagram is always present
Handle group nodes