Allow VisualizeObjectGraph to generate fully qualified type names

[dotnetjunkie]

Simple Injector's Options.UseFullyQualifiedTypeNames allows Simple Injector to report fully qualified type names (type name + namespace). When visualizing object graphs using InstanceProducer.VisualizeObjectGraph, however, there is no way to influence the generated type names. It will always generate 'friendly class names' instead.

It would be good if VisualizeObjectGraph would be able to override this default, for instance by letting the user do the following:

producer.VisualizeObjectGraph(new VisualizationOptions
{
    UseFullyQualifiedTypeNames = true // Nullable<bool>
});

[dotnetjunkie]

Feature-685 branch created.

[kwlin]

Working on it!

[kwlin]

Pull request accepted. See #686

Thanks @dotnetjunkie for the fast acceptance!