Exclude projects

[vip32]

Make it possible to exclude some projects.
For example (Unit)Test projects have references to many other projects and make the diagrams overly complex and unreadable due to so many dependencies.

[NikiforovAll]

There is a dependency explorer that allows us to achieve that.

Alternatively, we could add filter that supports globbing expressions, akin to vscode search filter

E.g: !**/*Tests.csproj