Make collection artifact arguments available in collection notebooks

[misje]

When processing the results from a collection in a collection notebook, it is sometimes very handy, or even essential, to know how the artifact was called. This is easy enough to do manually, but not if one wants to write a vql_suggestion in the artifact.

I am not sure how these parameters are best made available, either directly in the scope, through a scope object, or by calling a function. For a vql_suggestion, accessing the parameters from the current scope would be nice.