added new data-structures

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

misc/Debug.h

@@ -0,0 +1,30 @@
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#include <string>
+#include <iostream>
+#include <iomanip>
+
+class Log {
+
+public:
+
+	static void add(const char* comp, const std::string what) {
+		addComp(comp);
+		std::cout << what << std::endl;
+	}
+
+	static void add(const std::string& component, const std::string what) {
+		addComp(component.c_str());
+		std::cout << what << std::endl;
+	}
+
+private:
+
+	static void addComp(const char* component) {
+		std::cout << "[" << std::setw(12) << std::setfill(' ') << component << "] ";
+	}
+
+};
+
+#endif // DEBUG_H