Module adapter

I define adapters for the graph related traits.

Structs

• DatasetGraph
  I wrap a Dataset as a Graph corresponding to a specific graph (default or named) of the wrapped dataset.
• PartialUnionGraph
  I wrap a Dataset as a Graph corresponding to the union of a subset of its graphs, determined by a GraphNameMatcher.
• UnionGraph
  I wrap a Dataset as a Graph corresponding to the union of all graphs (default and named) from the original dataset.