Added temperature control accuracy attribute for the trvzb

[lcheng33775823]

No description provided.

[Koenkk]

Suggested change

	name: 'temp_accuracy',
	name: 'temperature_accuracy',

[photomoose]

@lcheng33775823 this is great, I've been looking for a way to have more control over the hysteresis. Thanks.

FYI: I've also exposed the external temperature sensor attributes here: #8873

[marazmarci]

I think using the term "accuracy" can be a bit misleading, and can cause confusion without reading the description (for example only seeing the entity name in HA). A more accurate name could be "Temperature control hysteresis". Or would "hysteresis" be a too scientific term to use? 🤔

[shaggee]

Guys do you know if temp accuracy atribute will be added to next release?

[photomoose]

Guys do you know if temp accuracy atribute will be add

Assuming @lcheng33775823 doesn't reply before, I'll pull these changes down tomorrow, test it, and make the changes as suggested by @Koenkk. Then it will likely be in the next release.

[bojanpotocnik]

and make the changes as suggested by @Koenkk

@photomoose what is your opinion on #8837 (comment) above?
I also think accuracy is a bit unusual wording for writable attribute representing hysteresis, tolerance, deadband, margin, ... Technically speaking, precision would be more correct than accuracy in this case 🤔