g2o_unfold → core Relation

File in g2o/examples/g2o_unfold	Includes file in g2o/core
g2o-unfold.cpp	block_solver.h
g2o-unfold.cpp	estimate_propagator.h
g2o-unfold.cpp	sparse_optimizer.h
tools.h	hyper_dijkstra.h
tools.h	hyper_graph.h