Add Preset Modes to MQTT Climate HVAC integration

Version 0.96 introduced preset modes for the climate integration, but it was not added to the MQTT climate integration. I would request this be added to the MQTT climate so that a full featured device can be configured using MQTT.

I’d like the same, there are thermostats, trv’s, and other devices that have built-in presets, and it would be great to have a possibility to use presets through mqtt.