More precise offset temperature rounding

[matschbirne]

What is the feature?

Offset temperature could be calculated in 0.1°C steps instead of just being rounded to .0°C or .5°C

Description

As far as I understand the code the temperature for the offset based calibration will be rounded in 0.5°C steps. I know that there are thermostats that doesn't accept more precise values, but at least the Sonoff TRVZB I'm using accepts 0.1°C steps. It would be great to have some kind of option which defines how values will be rounded or if it could be detected automatically.

Have I overlooked something and there already is such a feature? Or is there any other reason why temperature values should be only rounded in 0.5°C steps?

Thank you!

P.S. I could try to implement such a feature but it could take some time...

[matschbirne]

Nevermind. Thanks to @xX7 who already implemented what I was asking for. See #1181