v2.1.0 — Full 14-day trend exposure

Added

• 14-day trend overview sensor — all trend data accessible as attributes:

  {{ state_attr("sensor.kachelmannwetter_trend_14day", "days")[3].temp_max }}
  {{ state_attr("sensor.kachelmannwetter_trend_14day", "days")[5].precipitation_probability_1mm }}

• Precipitation forecast sensors for today and tomorrow (mm)
• Max possible sunshine hours sensor for today
• Wind gust forecast sensors for today and tomorrow (from 14-day trend)
• CHANGELOG.md following Keep a Changelog format

See CHANGELOG.md for full history.