Wind data from openwindmap as an extra source

[wavexx]

I've discovered another source for local weather stations that can be browsed from https://www.openwindmap.org/ due to a neighbor installing one station nearby.

I didn't go through the license, but there's a claim that the data is "open": http://developers.pioupiou.fr/

There's a good amount of stations especially in the alpine region, which would be incredibly handy to see.