use of ::VIES_EXCLUDED_COUNTRY_CODES

[cottton]

As i saw you added a new const VIES_EXCLUDED_COUNTRY_CODES to exclude f.e. country iso GB
(currently in master, not in last release) .

This const should be used to exclude f.e. GB in the listEuropeanCountries method and other places.

see https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L297

    if (! isset(self::VIES_EU_COUNTRY_LIST[$countryCode])) {
        throw new ViesException(sprintf('Invalid country code "%s" provided', $countryCode));
    }

---

see https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L339

        if (! isset(self::VIES_EU_COUNTRY_LIST[$requesterCountryCode])) {
            throw new ViesException(sprintf('Invalid requestor country code "%s" provided', $requesterCountryCode));
        }

---

see https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L339

    if (! isset(self::VIES_EU_COUNTRY_LIST[$countryCode])) {
        throw new ViesException(sprintf('Invalid country code "%s" provided', $countryCode));
    }

---

see https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L420

public static function listEuropeanCountries(): array
{
    static $list;

    if (! $list) {
        $list = array_combine(
            array_keys(self::VIES_EU_COUNTRY_LIST),
            array_column(self::VIES_EU_COUNTRY_LIST, 'name')
        );
        unset($list['EU']);
    }

    return $list;
}

---

The IMO best way would be a new method isEuropeanCountry(string $countryIso) : bool.
And in this new method we should return
is set at VIES_EU_COUNTRY_LIST
and is NOT set at VIES_EXCLUDED_COUNTRY_CODES

The exception thrown at https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L318
should be moved to https://github.com/DragonBe/vies/blob/master/src/Vies/Vies.php#L300
below the "Invalid country code" exception
to throw the "no longer supported" exception (which should actually be also say "invalid" IMO).