## A simple Guzzle 5 PSR-18 adapter

The problem with `prestashop/module-lib-guzzle-adapter` is that it either requires PHP 7.2.5 or later (version 1.x) or
does not fulfill the PSR-18 contract (version 0.x).

Using `php-http/guzzle5-adapter` is not really an option in a PrestaShop module if you do not want to couple your code
with the HttpPlug implementations of the exception classes. The reason for that is you cannot expect those classes to be
loaded using your module's autoloader - if they are included in another module using a version of `php-http/httplug`
prior to 2.0 (e.g. required by version 0.6 of the above-mentioned PS library) they might not implement PSR-18 interfaces.