Fix automatic switching to heat mode

[dobby5]

Hello this small patch adds the two switches "Auto Mode" and "Oscillation" to the integration. It also fixes the bug that when the slider is moved in the thermostat, it automatically switches to heat mode.

With normal thermostats this makes sense, here with the example "Dyson Pure Hot+Cool" it is only a hindrance and uncomfortable.

Thank you for all your work and for making the integration possible.

Changelog:
Fixing the error when adjusting the temperature in the thermostat (Automatic switching to heat mode)
Adding switch "Auto Mode" and "Oscillation"

[Zelaf]

Do you think it would be possible to add fan mode control for the AC cards? So instead of controlling the heat temperature in cool mode we could enable fan mode and control the fan speed from there on the AC cards.

Mushroom Cards have integration for fan control it seems since you can enable different HVAC modes, being able to switch between heat and fan mode and then control the fan speed through the card would be amazing.

Currently I have it setup so that I have a fan card so that I can control the speed but there's no easy way to turn it on to auto.