added new data-structures

added new test-cases
added flexible dijkstra calculation
added debugging log
modified: plotting, grid-generation, grid-importance,
refactoring

tests/grid/TestGridFactory.cpp

@@ -28,7 +28,7 @@ TEST(GridFactory, create) {
 	gfInv.addInverted(g, 20);
 	gfInv.addInverted(g, 340);
 
-//	plot(gInv);
+	//plot(gInv);
 
 
 }