Limit Device Interface Addition to Physically Connected Links on Maps

NetBrain currently adds interfaces to a map when a device is added without regard to whether those interfaces are part of an actual physical connection to another device already present on the map, which can result in unrelated or random interfaces appearing on the map. This enhancement would allow the map-building process to add only those interfaces that have a physical connection to another device on the map, excluding interfaces with no relevant connection. Limiting interface inclusion in this way would reduce map clutter and the need for manual cleanup, improving readability and accuracy of topology maps.