Refactoring

* package refactoring
* new matrix implementation (todo)
* new adj list implemetation (todo)
* fixed tests

src/berack96/lib/graph/models/GraphSaveStructure.java

@@ -0,0 +1,41 @@
+package berack96.lib.graph.models;
+
+import berack96.lib.graph.Edge;
+import berack96.lib.graph.Graph;
+
+/**
+ * Support class used for saving a Graph in a file.
+ * 
+ * @author Berack96
+ *
+ */
+public class GraphSaveStructure {
+	public GraphSaveStructure() {}
+	public GraphSaveStructure(Graph<?, ?> graph, String other) {
+		this.vertices = new String[graph.numberOfVertices()];
+		int i = 0;
+		for(Object o: graph.vertices()) {
+			this.vertices[i] = Graph.GSON.toJson(o);
+			i++;
+		}
+		
+		this.edges = new EdgeSaveStructure[graph.numberOfEdges()];
+		i = 0;
+		for (Edge<?, ?> edge : graph.edges()) {
+			this.edges[i] = new EdgeSaveStructure(
+					Graph.GSON.toJson(edge.getSource()),
+					Graph.GSON.toJson(edge.getDestination()),
+					Graph.GSON.toJson(edge.getWeight())
+				);
+			i++;
+		}
+		
+		
+		this.other = other;
+	}
+	
+	public String[] vertices;
+	public EdgeSaveStructure[] edges;
+	//public MarkSaveStructure[] marks;
+	public String other;
+}