Remove Secure Connection macro and add the config to wifimanager. (#961)

This adds the ability to specify if the MQTT broker connection is secure via a checkbox on the config page of WiFiManager.
Also added to the WiFiManager config page is a text box to enter the brokers TLS certificate.

In the case of using manual configuration a new macro is created MQTT_SECURE_DEFAULT.
When defined as true a secure connection will be requested and the certificate defined in user_config.h will be used.

docs/upload/advanced-configuration.md

@@ -13,7 +13,7 @@ The MQTT broker is configured for TLS and you have access to the CA certificate
 You are using ESP8266 or ESP32, for other boards TLS is not supported.
 
 ### Configure secure connection in the gateway
-To enable the secure connection and use TLS uncomment `//#define SECURE_CONNECTION` in `User_config.h`.
+To enable the secure connection and use TLS set the `#define MQTT_DEFAULT_SECURE` to true.
 Set `MQTT_SERVER` to the Common Name (CN) of the certificate of the broker.
 This can be the hostname or the ip of the broker.
 
@@ -28,9 +28,6 @@ const char* certificate CERT_ATTRIBUTE = R"EOF("
 ")EOF";
 ```
 
-If you have no ntp server in your local network (included in the router) or not using dhcp, you should uncomment `//#    define NTP_SERVER "pool.ntp.org"` to use a ntp server for time synchronization.
-This is related to the `W: failed, ssl error code=54` error message, which indicate that the time of the esp is not correct.
-
 You can know compile and upload to your board and the gateway should connect with TLS to your broker.
 
 ## Add the reveived "value" at the end of the topic

docs/upload/portal.md

@@ -14,6 +14,9 @@ From your smartphone search for your OpenMQTTGateway wifi network and connect to
 * Select your wifi
 * Set your wifi password
 * Set your MQTT Server IP
+* Set your MQTT Server Port
+* Set the MQTT secure connection box to select whether or not the connection should be secure
+* Copy/paste the MQTT server certificate in the MQTT server cert box (only required if using a secure connection), be sure to include the `-----BEGIN CERIFICATE-----` and `-----END CERTIFICATE-----` markers  
 * Set your MQTT Server username (facultative)
 * Set your MQTT Server password (facultative)
 * Set your MQTT base topic if you need to change it (you must keep the / at the end)
@@ -55,4 +58,4 @@ build_flags =
   '-DMQTT_USER="salut"'
   '-DMQTT_PASS="atoi"'
   '-DGateway_Name="OpenMQTTGateway_ESP32_OLM_GTW"'
-```
+```