make a virtual Equals func on components. Will need to make custom ones for a link and a device

EduNetworkBuilder/NetworkComponent.cs

@@ -28,7 +28,12 @@ namespace EduNetworkBuilder
         public virtual void Print(Image BaseImage, CaptionType DrawTitle)
         {
         }
-        
+
+        public virtual bool Equals(NetworkComponent toCompare)
+        {
+            return false;
+        }
+
         public virtual bool HasMac(string MAC)
         {
             return false;