Function NewAgent

NewAgent create new agent instance

(
	conn net.Conn,
	packetDecoder codec.PacketDecoder,
	packetEncoder codec.PacketEncoder,
	serializer serialize.Serializer,
	heartbeatTime time.Duration,
	messagesBufferSize int,
	dieChan chan bool,
	messageEncoder message.Encoder,
	metricsReporters []metrics.Reporter,
)