[GNNet challenges] BNNetSimulator image release

Dear members, After successfully completing one more edition of the Networking Challenge, we are proud to announce the release of BNNetSimulator, a new docker image of the NetSim simulator released during the current challenge but without its restrictions. You can find all required information in the following link: [https://github.com/BNN-UPC/BNNetSimulator] Best regards, Albert López on behalf of the GNNet Challenge Organizing Committee