Dependency view for namespaces

[Sebobo]

Currently the dependency view only works for single node types, or shows ALL dependencies.

Instead when selecting a namespace the chart should show all type in that namespace + all links outside and inside with a depth one 1.

This would allow seeing that a package or namespace depends upon and which other packages depend on it.

• [x] Render all types of a package
• [x] Render their direct outside supertypes
• [ ] Render other types inheritance from the given types