Estimate humidity based on historical data

[kylecorry31]

Similar to the temperature, but for humidity.

• [x] Generate historic humidity models
• [ ] Verify accuracy
• [ ] Always use sensor if available
• [ ] Display relative humidity on weather tool
• [ ] Display dew point on weather tool
• [ ] Display feels like temperature on weather tool
• [ ] Use to calculate heat index / alerts
• [ ] Click dew point on weather tool to see dew point throughout the day (recorded + predicted)
• [ ] Click feels like temperature on weather tool to see dew point throughout the day (recorded + predicted)
• [ ] Add historic indicator to both relative humidity and dew point
• [ ] Show humidity yearly chart on climate (toggle)
• [ ] Show dew point chart on climate (toggle)
• [ ] Show humidity for chosen date on climate
• [ ] Show dew point for chosen date on climate
• [ ] Show feels like (high, low) for chosen date on climate
• [ ] Show feels like temperature for chosen date on climate

[kylecorry31]

Initial experimentation: https://github.com/kylecorry31/Trail-Sense/tree/humidity-model