Add Thermoval TVT 40 WiFi Thermostat

[madpeteguy]

Home: https://thermoval.pl/en/contact-en/
Catalog: https://thermoval.pl/wp-content/uploads/2023/09/THERMOVAL-Cennik-ENG.pdf

Screenshots:

[make-all]

hvac_mode should not be read-only. If this is really read-only, rename this attribute (I guess the original tuya name is work_mode, which would be appropriate) to avoid buttons that cannot be used in the UI (the mode will then always show as auto).

[madpeteguy]

@make-all Thanks for review!

It's been six months since I created this configuration, I've forgotten a lot. 🤯
But I got tired of catching up with own configuration file after each plugin update, although I could mount it via docker.
I'll check with the suggestions when I find some free time, probably after the new year.

Anyway, it's based on another device's configuration that someone provided somewhere as a workaround, but I can't find that entry. The replacement worked fine with the basic functionality of the thermostat.
I upgraded it a bit to make most of the functionality of the TVT 40 device available in HA.
Mainly displaying cooling mode (without hacks like overriding hvac_mode it always displayed heating, if i remember correctly it had problems with writing to id:9 so read only seemed right).
Also temperature reading for sensor_select = "2" with limits for both sensors, where one has a common weekly schedule in auto mode or a fixed value in manual mode, and a separate value for the other sensor.

Thermostate cards do not support such a combo, I'm fine with apexchart:

It is controlled with entities card (i think it might be the reason for sensor duplication):

Thermostate card hide so much info...

[make-all]

Fixed most review comments