Fixed issue with wbridge stripping off the gateway MAC. Treat wbridge as a hub/switch.

EduNetworkBuilder/NetworkDevice.cs

@@ -1355,7 +1355,8 @@ namespace EduNetworkBuilder
             foreach(NetworkCard nic in NICs)
             {
                 NicType NT = nic.GetNicType;
-                if (myType == NetworkComponentType.wap)
+                //bridges and waps are basically switches
+                if (myType == NetworkComponentType.wap || myType == NetworkComponentType.wbridge)
                     NT = NicType.port;
                 switch(NT)
                 {