Add option to disable SSL

it disable mqtts but save ~50ko

WifiControlSensor/MQTT.ino

@@ -45,9 +45,11 @@ int MqttSetup(char *server, char *user, char *passwd, int port, char *hostname)
   if(!isMqttConfigured)
     return 0;
 
+#ifndef CONFIG_DISABLE_SSL
   if(useMqtts)
     mqtt = new Adafruit_MQTT_Client(new WiFiClientSecure(), server, port, user, passwd);
   else
+#endif
     mqtt = new Adafruit_MQTT_Client(new WiFiClient(), server, port, user, passwd);
 
   mqtt_dht_temp = MqttCreatePublisher(TEMPERATURE_DHT_FEED_FORMAT, user, mqttId);

WifiControlSensor/config_device.h

@@ -6,6 +6,9 @@
 // Switch Serial console on gpio 13 and 15 (So you can use GPIO 1 and 3 for other things)
 //#define CONFIG_ENABLE_EXTRA_GPIO
 
+// Disable SSL (so mqtts) to save some place (~52ko)
+//#define CONFIG_DISABLE_SSL
+
 // Enable the temperatue and pressure Sensor BMP180 
 // (CONFIG_BMP180_SDA and CONFIG_BMP180_SDA should be defined as well)
 #define CONFIG_ENABLE_BMP180