feature@tree: added breadfirst search to search elements in the tree

Author: benofthebens

include/tree.h

@@ -5,16 +5,15 @@
 #ifndef TREE_H
 #define TREE_H
 #include "graph.h"
-
 template <typename T>
 class Tree {
 public:
     Tree();
     ~Tree();
     void add(T parent_data, T data);
     T remove();
+    Node<T> *get(T data);
 private:
-    Graph<Node<T>*>* graph;
     Node<T>* root;
 };