IRM KMI Weather integration for Home Assistant

Mapping between IRM KMI and Home Assistant weather conditions

Condition	Description	IRM KMI data (`ww-dayNight`)
clear-night	Clear night	`0-n`
cloudy	Many clouds	`3-d` `3-n` `14-d` `14-n` `15-d` `15-n`
exceptional	Exceptional	`21-d` `21-n` `27-d` `27-n`
fog	Fog	`24-d` `24-n` `25-d` `25-n` `26-d` `26-n`
hail	Hail
lightning	Lightning/ thunderstorms
lightning-rainy	Lightning/ thunderstorms and rain	`2-d` `2-n` `5-d` `5-n` `7-d` `7-n` `10-d` `10-n` `13-d` `13-n` `17-d` `17-n`
partlycloudy	A few clouds	`1-d` `1-n`
pouring	Pouring rain	`4-d` `4-n` `6-d` `6-n` `16-d` `16-n` `19-d` `19-n`
rainy	Rain	`18-d` `18-n`
snowy	Snow	`11-d` `11-n` `12-d` `12-n` `22-d` `22-n` `23-d` `23-n`
snowy-rainy	Snow and Rain	`8-d` `8-n` `9-d` `9-n` `20-d` `20-n`
sunny	Sunshine	`0-d`
windy	Wind
windy-variant	Wind and clouds