Only one last name supported

[unsized2]

Some passports have more then one last name eg Portugese. The MRZ parser assumes only one lastname is present.

Possibly modify getFirstLastName to explode the lastName

private function getFirstLastName(string $fullName): array
 {
     [$lastName, $firstName] = explode('<<', $fullName);

     return [explode('<', $lastName), explode('<', $firstName)];
 }