[OpenCage] configure guessing order

It would be great, if the guessing order could be configured instead of being hard coded.

For example for this result in Germany: '53757, Sankt Augustin, Grantham Allee 20, Deutschland' the returned components are:

"components": {
        "ISO_3166-1_alpha-2": "DE",
        "ISO_3166-1_alpha-3": "DEU",
        "_category": "commerce",
        "_type": "shop",
        "city": "Rhein-Sieg-Kreis",
        "continent": "Europe",
        "country": "Deutschland",
        "country_code": "de",
        "county": "Rhein-Sieg-Kreis",
        "house_number": "20",
        "political_union": "European Union",
        "postcode": "53757",
        "road": "Grantham-Allee",
        "shop": "Druckpunkt",
        "state": "Nordrhein-Westfalen",
        "state_code": "NW",
        "suburb": "Mülldorf",
        "town": "Sankt Augustin"
      }

Due to the current locality order 'Rhein-Sieg-Kreis' will be returned as city, but 'Sankt Augustin' would be correct. In comparison to the formatted field of the OpenCage-result "Druckpunkt, Grantham-Allee 20, 53757 Sankt Augustin, Deutschland" where the city is set properly.

https://github.com/OpenCageData/address-formatting/blob/master/conf/countries/worldwide.yaml

shows different orders depending for different countries.

In my opinion a simple solution could be to make the $localityKeys array public and static.

Bắt đầu bằng cách so sánh thứ tự địa phương trong conf/countries/worldwide.yaml với mã sử dụng mảng $localityKeys. Hãy cho phép cấu hình thứ tự phỏng đoán mà không làm mất hành vi riêng theo từng quốc gia, đồng thời xác minh rằng ví dụ sẽ xác định Sankt Augustin thay vì Rhein-Sieg-Kreis là thành phố.