Make directions adjustable

[Haroenv]

now it’s wind directions always because that happened to match for Ghent, other stations will need that check to be different.

We should get the closest of the directions (which is a point), and that should work.

Now we just literally check the direction with latitude > gent.latitude ...

[Haroenv]

proposal: there should be a new key “directions” in the config.json

"directions": [
  {
    "longitude": 3.710675,
    "latitude": 51.035896,
    "name": "Antwerpen"
  },
  {
    "longitude": 3.710675,
    "latitude": 51.035896,
    "name": "Brugge"
  },
  {
    "longitude": 3.710675,
    "latitude": 51.035896,
    "name": "Kortrijk"
  }
]

[Haroenv]

Those coordinates should be a point on the real railway track separating the directions.