arccore.graph add support for flexible graph filtering #6
Description
Similar in spirit to existing transpose algorithm accepts an input graph and produces a second graph that's a copy of the first with its edges reversed (transposed), the graph filter operation would allow a developer to pass in a DirectedGraph instance and some TBD predicate specification and get back a second DirectedGraph instance that is a filtered copy of the first.
Some common predicates:
- Remove all vertices matching predicate
- Remove all edges matching predicate
- BFT/DFT-based filtering (uses special visitors to affect advanced filtering operations)