parallelized pre-simulation ff calculation

Simulation.cpp

math/GradientModel.cpp

routing/CognitiveMapRouter.cpp

routing/CognitiveMapRouter.h

routing/DirectionStrategy.cpp

routing/DummyRouter.cpp

routing/DummyRouter.h

routing/GlobalRouter.cpp

routing/GlobalRouter.h

routing/MeshRouter.cpp

routing/MeshRouter.h

routing/Router.h

routing/RoutingEngine.cpp

routing/RoutingEngine.h

routing/ffRouter.cpp

routing/ffRouter.h