data: saving graph nodes with short name only

This change saves only the short names in the node, getName() no only gives the short version. The fullName is assembled
from the parent nodes on demand using the getFullName() method.

src/lib/data/graph/Graph.h

@@ -2,8 +2,9 @@
 #define GRAPH_H
 
 #include <memory>
-#include <vector>
 #include <ostream>
+#include <deque>
+#include <vector>
 
 #include "data/graph/Edge.h"
 #include "data/graph/Node.h"
@@ -54,8 +55,9 @@ protected:
 private:
 	static const std::string DELIMITER;
 
-	Node* insertNodeHierarchy(Node::NodeType type, const std::string& fullName);
-	Node* insertNode(Node::NodeType type, const std::string& fullName, Node* parentNode);
+	Node* getLastValidNode(std::deque<std::string>* names) const;
+	Node* insertNodeHierarchy(Node::NodeType type, std::deque<std::string> names, Node* parentNode);
+	Node* insertNode(Node::NodeType type, const std::string& name, Node* parentNode);
 	Edge* insertEdge(Edge::EdgeType type, Node* from, Node* to);
 	void removeEdgeInternal(Edge* edge);