Added Basic MQTT Support and JSON Deserialization

MQTT.hpp

@@ -0,0 +1,42 @@
+#pragma once
+
+const IPAddress MQTT_HOST(10, 98, 20, 10);
+const int MQTT_PORT = 1883;
+
+AsyncMqttClient mqttClient;
+
+String GetPayloadContent(char* data, size_t len)
+{
+	String content = "";
+	for(size_t i = 0; i < len; i++)
+	{
+		content.concat(data[i]);
+	}
+	return content;
+}
+
+void SuscribeMqtt()
+{
+	uint16_t packetIdSub = mqttClient.subscribe("user123456/channel", 0);
+	Serial.print("Subscribing at QoS 2, packetId: ");
+	Serial.println(packetIdSub);
+}
+
+String payload;
+void PublishMqtt(unsigned long data)
+{
+	String payload = String(data);
+	mqttClient.publish("hello/world", 0, true, (char*)payload.c_str());
+}
+
+void OnMqttReceived(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total)
+{
+	//Serial.print("Received on ");
+	//Serial.print(topic);
+	//Serial.print(": ");
+
+	String content = GetPayloadContent(payload, len);
+  reconstr(content);
+	//Serial.print(content);
+	//Serial.println();
+}