Adds support for climate integrations to support eco mode

[jesserockz]

Description:

Add support for climate devices to set eco_mode on or off.
To be used this would need to be implemented also in API clients such as homeassistant as a preset mode for the climate entity.

Related issue (if applicable): fixes

Pull request in esphome-docs with documentation (if applicable): esphome/esphome-docs#627

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in esphome-docs.

[glmnet]

Does this one requires also an update on the aioesphomeapi and the home assistant integration?

There is a pending PR esphome/aioesphomeapi#8 on fan waiting for Otto, actually what we need there is update the aioesphome library update the pypi, that repo needs the action to publish to pypi too, I believe the twine secrets are already available.

[jesserockz]

Yes it would. I have not looked into writing that part yet though.

I can look into writing a GH action for it though.

[blademckain]

ECO, as well as AWAY should be presets supported by the climate component, like the other presets indicated here

To be closer to the home assistant logic,
they should not be handled with a true / false Boolean
but with a list in which to indicate which presets it supports and the possibility of also having custom presets

[jesserockz]

ECO, as well as AWAY should be presets supported by the climate component, like the other presets indicated here

To be closer to the home assistant logic,
they should not be handled with a true / false Boolean
but with a list in which to indicate which presets it supports and the possibility of also having custom presets

I totally agree with you there and it's why I have not gone further with adding support for this specific eco_mode in aioesphomeapi too.