Weather: Added weather underground support
Weather: Added weather underground support

Still need to add the UI element to allow switching

OpenSprinkler/OpenSprinkler-App,PeteBa/OpenSprinkler-App,PeteBa/OpenSprinkler-App,PeteBa/OpenSprinkler-App,OpenSprinkler/OpenSprinkler-App,OpenSprinkler/OpenSprinkler-App