Add more airports

[snollygolly]

I'd like to increase the number of airports available and I'd like to get at least 2 airports in every country I currently have. This may or may not be possible depending on the size of the country and airports available.

Airports are currently stored in places.json (https://github.com/snollygolly/paw-wars/blob/master/models/game/data/places.json). It consists of an array of airports. An example airport might look like this:

  {
    "id": "MEL",
    "name": "Melbourne Airport",
    "city": "Melbourne",
    "country": "Australia",
    "continent": "Australia",
    "size": 5,
    "coordinates": {
      "latitude": -37.6690123,
      "longitude": 144.8388386
    }
  }

Most of the values are self explanatory, but the important one for this issue is size. This is how many million people live in the metropolitan area around the airport. 5,000,000 people live in Melbourne (according to wikipedia), so size would be 5. When adding new airports please make sure you don't select airports that would have a size lower than 5.

Also, make sure you have the latitude and longitude correct, this helps calculate distance for flights.

[snollygolly]

Here's a good list to start with: https://en.wikipedia.org/wiki/List_of_metropolitan_areas_by_population