Adapt to 2.0TD
- Refactor + Prettier previous commit. Remove not valley holidays. Thanks @jjprz for previous commit, lot of work put to good use on this one.
- Remove old, related periods and tariffs code.
To make the card work again, and until HA will deploy an updated version, you must use the hotfix created by @azogue that you can find here: azogue/aiopvpc#16 (comment)