Add Calendar support

[Julian-1-2-3-4-5]

Describe the component you'd like

I would like to see support for calendars. Like in homeassistant you can have calendars from different inegration, for example from caldav. it would be cool if we could have an esp device create calendars/calendar events from sensor data or also display a calendar more easily.

What are your use cases for this component?

I would like to have an esp32 with a display and buttons that can manage my calendar:
display it for me, add/edit/remove events.

I could also see this be useful to allow other sensors to automatically add tasks, create a calendar on when a sprinkler should run etc.

Is there a public datasheet, documentation and/or schematics?

No response

Anything else?

you can technically write this yourself right now by directly using the homeassistant calendar entities via the api, or via http request and then using lambda code for the displaying part.

The letting stuff run on a calendar schedule can also kinda be done the same way, but is clunky aswell.

Having this in a way where you don't need to fiddle with that much custom code would make this easier