Tempest Weather Station Support

[MrGrymReaper]

Currently the weather skill function is dependent on OpenWeatherMap which I don't mind supporting and paying for. However having a fallback for this service would be helpful, also anyway its service is only as good as it meteorological data.

Weatherflow is currently working on releasing a weather station product for home, and/or business users world wide. It is called "Tempest Weather System" it utilises an advanced weather station with AI for providing an increasingly accurate forecast over time.

Mycroft AI's weather skill could do with being able to utilise this as an alternative and/or fallback weather data service. Which would also allow for as a result access to the hardware product's weather data.

This can be used for the weather forcast and/or announcements used by this skill and other skills.