Gree integration: add health mode (anion) support

With the summer coming, it would be awesome to add support for the HEALTH (anion) feature for GREE ACs.

I’ve got two split ACs hooked to HA through the gree integration and they work great, I’ve been managing heating with HA all winter.

I’ve already created a PR to implement this, but unfortunately, it has not been merged since December.

Now I redid the PR (fixed some merge issues as well) and I’m currently trying to get some support for the feature in hopes of grabbing some maintainer attention.

PR link → Add health mode to gree integration by solazs · Pull Request #89764 · home-assistant/core · GitHub

Drop a vote if you think this would be a great addition to HA!