MQTT over SSL

[archont00]

Is your feature request related to a problem? Please describe.
Support for SSL connections from HCPBridgeMqtt to MQTT broker.

Describe the solution you'd like
The garage is unreachable from LAN and internet connection is provided by WLAN AP via mobile network subscription (standard LTE modem with prepaid SIM card). HCPBridgeMqtt would run on ESP32 + Modbus bridge to Hörmann SupraMatic 4.

Describe alternatives you've considered
Setting up low power device with non-SSL MQTT broker in my garage and relaying the messages over SSL to my main MQTT broker on public IP.