Add HARMONIE weather model

[johanbeckett99]

Please add DMI.dk’s HARMONIE model. It’s free, widely used in Denmark, and one of the most accurate models for short-term forecasts, especially for coastal wind, gusts and local weather. It would be a great addition to Windy.

[Suty]

@johanbeckett99 Hello, there is no specific plan to add more local European models right now.