Fixed loop  that occured when two bridges joined together and the switch, forming a loop that would take all the CPU usage from process systemd-networkd

general: added bridge interfaces between switches and pods. \n This is with the objective  of easing and automating the installation of l2sm, without having the user to configure the ip addresses in their machine

BUG FIX: switch ip now is saved correctly in the database, using a better trigger for the ip assigning event