Introduce the concept of primary and secondary weathers:
* Primary weather keeps the same behavior as previously across all weather providers, so it's non-breaking. This location is not necessarily the current location, just the primary weather location set by the user.
* The GenericWeatherReceiver now has a new extra WeatherSecondaryJson, that receives a json list with secondary weather locations.
It's guaranteed that the primary weather always exists, so the list of WeatherSpecs provided to devices is never empty. Update all support classes accordingly.
No longer save an instance of ParcelableWeather2, rely on our WeatherSpec instead which now has all forecast data and save reconstructed owm weather json in Weather
Add weather info for TimeStylePebble.
Add further fields to the ParcelableWeather class.
Add reverse mapping to ParcelableWeather to get back the original OpenWeatherMap API condition codes.
