Started bintree exercise

Programming_Paradigms/bintree.py

+#!/usr/bin/env python3
+# *-* coding:utf-8 *-*
+
+if __name__ == "__main__":
+    pass

Programming_Paradigms/bintree_test.py

+#!/usr/bin/env python3
+# *-* coding:utf-8 *-*
+
+import unittest
+from bintree import *
+
+if __name__ == "__main__":
+    unittest.main()