added support for secure TLS connections (#699)

* added support for secure TLS connections
on ESP32 and ESP8266 close #101

* added TLS test builds

* added documentation for TLS
fixed some some issues in the documentation

* added documentation for error code=54

docs/.vuepress/config.js

@@ -63,6 +63,7 @@ module.exports = {
             'upload/pio',
             'upload/arduino-ide',
             'upload/portal',
+            'upload/advanced-configuration',
             'upload/troubleshoot'
           ]
         },