Include Bus Connections in Trunk Link Highlighting

NetBrain currently does not consistently highlight all trunk links on L2 topology maps when a bus element is part of the connection path, leaving some trunk segments visually indistinguishable from non-trunk links. This enhancement would extend the trunk highlighting logic so that all trunk connections, including those passing through bus elements, are rendered in the same highlighted color. Consistent trunk highlighting across all connection types would improve map readability and reduce the risk of misinterpreting network topology during troubleshooting.