Pamhyr2: Some fixes.

src/Model/Network/Edge.py

@@ -16,10 +16,11 @@
 
 # -*- coding: utf-8 -*-
 
+from Model.Tools.PamhyrDB import PamhyrID
 from Model.Network.Node import Node
 
 
-class Edge(object):
+class Edge(PamhyrID):
     def __init__(self, id: int, name: str,
                  node1: Node = None,
                  node2: Node = None,

src/Model/Network/Node.py

@@ -16,10 +16,11 @@
 
 # -*- coding: utf-8 -*-
 
+from Model.Tools.PamhyrDB import PamhyrID
 from Model.Network.Point import Point
 
 
-class Node(object):
+class Node(PamhyrID):
     def __init__(self, id: int, name: str,
                  x: float = 0.0, y: float = 0.0,
                  status=None):