fix wrong javadoc link
rename for new graph
prepare  new graph data structures
prepare  new graph data structures
introduce new graph to AllPairShortestPath
introduce new graph to DFS codes.
introduce new graph to SingleSourceShortestPathAlgorithm
refactoring - simple rename
introduce new graph to BFSTest.java
introduce new graph to CycleDetection
introduce new graph to DFSCoreTest.java
introduce new graph to DFSPathFinderTest.java
add new graph's method for EdgeFilteredSubGraph
introduce new graph to EmptyFlowNetworkGraph
prepare  new graph data structures
introduce new graph to MaximumFlowAlgorithm
introduce new graph to MinimumSpanningTreeAlgorithm
introduce new graph to RootedTree
introduce new graph to NegativeCycleFinder
introduce new graph to NumberOfConnectedComponents