* MQTT discovery improvements
-remove gatewayBT
-remove device class formaldehyde (not existing in HASS)
-add SYStoMQTT new parameters
-attach connectivity parameter to the device
-add BT gateway infos and switches
-refactor modules storage and publication
* 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
Florian