* add config flow
* unit tests
* yaml config import flow
* change deprecation period and simply code
* keep name for legacy yaml
- removing the name now would break current implementations
- it will be removed together with the deprectation of yaml config flow
* improve error handling, simpler unique_id, cleanup
* simplify issues for yaml import flow
* improve typing and clean name handling
* streamline unit tests
- happy path + errors
- mock opendata instead of aiohttp
* parametrize unit tests
* improve strings
* add missing aborts
* update coverage ignore
* remove redundant test
* minor clean up of constants
Marc Mueller
Cyrill Raccaud