Add missing allowed countries.

[budzanowski]

Changes proposed in this Pull Request:

As mentioned in #803 the API response has more countries then the list used as fallback. This PR adds the missing countries.

Closes #803 .

Detailed test instructions:

1. Setup debug trap for get_list_of_ads_supported_countries
2. Connect the plugin, until the plugin gets connected the get_list_of_ads_supported_countries should use fallback
3. After the connection that function should return the list from the API
4. The lists should be the same.

Changelog entry

Update - Add missing countries to the allowed countries list.

[ibndawood]

Thank you, @budzanowski, for the PR. I followed the test instructions. I got this response:

{
  "status": "success",
  "code": 0,
  "message": "ok",
  "endpoint_name": "get_advertiser_countries_handler",
  "data": [
    {
      "name": "Argentina",
      "index": 36,
      "code": "AR",
      "currency": "Argentine Peso"
    },
    {
      "name": "Australia",
      "index": 5,
      "code": "AU",
      "currency": "Australian Dollars"
    },
    {
      "name": "Austria",
      "index": 11,
      "code": "AT",
      "currency": "Euros"
    },
    {
      "name": "Belgium",
      "index": 15,
      "code": "BE",
      "currency": "Euros"
    },
    {
      "name": "Brazil",
      "index": 34,
      "code": "BR",
      "currency": "Brazilian Real"
    },
    {
      "name": "Canada",
      "index": 3,
      "code": "CA",
      "currency": "Canadian Dollars"
    },
    {
      "name": "Chile",
      "index": 37,
      "code": "CL",
      "currency": "Chilean Peso"
    },
    {
      "name": "Colombia",
      "index": 38,
      "code": "CO",
      "currency": "Colombian Peso"
    },
    {
      "name": "Cyprus",
      "index": 25,
      "code": "CY",
      "currency": "Euro"
    },
    {
      "name": "Czech Republic",
      "index": 31,
      "code": "CZ",
      "currency": "Czech Koruna"
    },
    {
      "name": "Denmark",
      "index": 23,
      "code": "DK",
      "currency": "Danish Krone"
    },
    {
      "name": "Finland",
      "index": 24,
      "code": "FI",
      "currency": "Euro"
    },
    {
      "name": "France",
      "index": 7,
      "code": "FR",
      "currency": "Euros"
    },
    {
      "name": "Germany",
      "index": 10,
      "code": "DE",
      "currency": "Euros"
    },
    {
      "name": "Greece",
      "index": 32,
      "code": "GR",
      "currency": "Euro"
    },
    {
      "name": "Hong Kong",
      "index": 18,
      "code": "HK",
      "currency": "Hong Kong Dollar"
    },
    {
      "name": "Hungary",
      "index": 30,
      "code": "HU",
      "currency": "Hungarian Forint"
    },
    {
      "name": "Ireland",
      "index": 4,
      "code": "IE",
      "currency": "Euros"
    },
    {
      "name": "Israel",
      "index": 9,
      "code": "IL",
      "currency": "New Shekel"
    },
    {
      "name": "Italy",
      "index": 12,
      "code": "IT",
      "currency": "Euros"
    },
    {
      "name": "Japan",
      "index": 19,
      "code": "JP",
      "currency": "Yen"
    },
    {
      "name": "Luxembourg",
      "index": 26,
      "code": "LU",
      "currency": "Euro"
    },
    {
      "name": "Malta",
      "index": 27,
      "code": "MT",
      "currency": "Euro"
    },
    {
      "name": "Mexico",
      "index": 35,
      "code": "MX",
      "currency": "Mexican Peso"
    },
    {
      "name": "Netherlands",
      "index": 14,
      "code": "NL",
      "currency": "Euros"
    },
    {
      "name": "New Zealand",
      "index": 6,
      "code": "NZ",
      "currency": "New Zealand Dollars"
    },
    {
      "name": "Norway",
      "index": 22,
      "code": "NO",
      "currency": "Norwegian Krone"
    },
    {
      "name": "Poland",
      "index": 28,
      "code": "PL",
      "currency": "Poland Zloty"
    },
    {
      "name": "Portugal",
      "index": 16,
      "code": "PT",
      "currency": "Euros"
    },
    {
      "name": "Romania",
      "index": 29,
      "code": "RO",
      "currency": "Romanian Leu"
    },
    {
      "name": "Singapore",
      "index": 21,
      "code": "SG",
      "currency": "Singapore Dollar"
    },
    {
      "name": "Slovakia",
      "index": 33,
      "code": "SK",
      "currency": "Euro"
    },
    {
      "name": "South Korea",
      "index": 20,
      "code": "KR",
      "currency": "South Korean Won"
    },
    {
      "name": "Spain",
      "index": 13,
      "code": "ES",
      "currency": "Euros"
    },
    {
      "name": "Sweden",
      "index": 8,
      "code": "SE",
      "currency": "Krona"
    },
    {
      "name": "Switzerland",
      "index": 17,
      "code": "CH",
      "currency": "Swiss Franc"
    },
    {
      "name": "United Kingdom",
      "index": 2,
      "code": "GB",
      "currency": "British Pounds"
    },
    {
      "name": "United States",
      "index": 1,
      "code": "US",
      "currency": "Dollars"
    }
  ]
}

I compared the countries in the data with the fallback array in the get_countries method. I can see that the new missing countries have been added.

[budzanowski]

@ibndawood thank you for the review!