Provide more sophisticated weather forecast with Open Meteo

[MrCsabaToth]

If we introduce Open Meteo for geolocation #40 (name -> lat / lon), then we should also test to convert to Open Meteo forecast, because the current 7timer.info API we use cannot really take time duration. Open meteo can provide:

• Forecast up to given time duration
• Archived forecast data access with Past Days
• Daily time series resolution
• Hourly time series resolution
• 15 minutes time series resolution!!! (HRRR model)

https://open-meteo.com/en/docs#hourly=temperature_2m,relative_humidity_2m,precipitation_probability,rain,showers,snowfall,cloud_cover,wind_speed_10m,wind_gusts_10m&past_days=1&forecast_days=1

[MrCsabaToth]

It turns out that Meteo provides API for these too:

• Weather ensemble models, maybe we should use that for the standard weather via GFS seamless: https://open-meteo.com/en/docs/ensemble-api#models=gfs_seamless
• Historical Weather: https://open-meteo.com/en/docs/historical-weather-api
• Air Quality (PM25, PM10, O3, various different pollens, UV Index) https://open-meteo.com/en/docs/air-quality-api
• Climate Change (7 different models): https://open-meteo.com/en/docs/air-quality-api
• Marine forecast (sophisticated wave variables): https://open-meteo.com/en/docs/marine-weather-api
• Flood API, global coverage for rivers, flood warning and awareness https://open-meteo.com/en/docs/flood-api

We should add these!