fake ConsensusList

generate cert for the network

get the group information of the given group

get the length of the rlp encoding

address based on blockNumber, contextID, seq

Note: copy here to ensure thread-safe, use std::move out to ensure performance

* @brief: receive message from gateway * @param _groupID: groupID * @param _nodeID: the node send the message * @param _data: received message data