Data packet, size 64

                type                      : data type (uint8_t)
                len                       : data length (uint8_t)
                data                      : raw data (uint8_t)

def data64_send(self, type, len, data, force_mavlink1=False):
                '''
                Data packet, size 64

                type                      : data type (uint8_t)
                len                       : data length (uint8_t)
                data                      : raw data (uint8_t)

                '''
                return self.send(self.data64_encode(type, len, data), force_mavlink1=force_mavlink1)