[Google Maps] Add output language support

The following was submitted in the GeocoderLaravel repo by @xSoulRootx (https://github.com/geocoder-php/GeocoderLaravel/issues/144), but probably belongs here:

============

General Information

GeocoderLaravel Version: ^4.0
Laravel Version: 5.7.*
PHP Version: 7.2
Operating System and Version: Ubuntu

Issue Description

Output language in reverse query don't work

Resolve

vendor\geocoder-php\google-maps-provider\GoogleMaps.php

in

public function reverseQuery(ReverseQuery $query): Collection

before

return $this->fetchUrl($url, $query->getLocale(), $query->getLimit(), $query->getData('region', $this->region));

add

        if (null !== $query->getLocale()) {
            $url .= '&result_type='.urlencode($resultType);
        } else {
            $url .= '&language='.env('GOOGLE_MAPS_LOCALE', 'en-US');
        }

or something like this

从 vendor/geocoder-php/google-maps-provider/GoogleMaps.php 中的 reverseQuery(ReverseQuery $query) 开始，然后检查 Google Maps 请求如何处理 locale 和 URL 参数。完成的标准是反向查询遵循请求的输出语言，包括未提供 locale 时的明确定义行为，并且已验证由此产生的请求行为。