Ability to know in validation report which resources were targeted by a shape, and which didn't ("shape coverage") #326
Description
Currently, when validating a graph, it is impossible to know whether all subject of triples in the graph were actually validated by some shape. In other words, I would like to be able to "close the graph", meaning that I don't want to graph to contain subjects of triples that have not been targeted by any shape.
Similar to #325, this could be done by enhancing the validation report with an additional explicit link between targeted resources and the targeting shape.