title: Autoload PHP library in PrestaShop for shipping carrier module
body: <p>I want to use this library in PrestaShop shipping carrier modules: <a href="https://github.com/dvdoug/BoxPacker" rel="nofollow">https://github.com/dvdoug/BoxPacker</a></p>
  
  <p>The BoxPacker library determines the number and size of boxes required from an available list to pack the selected items. I will use the library in shipping carrier modules, such as fedexcarrier, to retrieve more accurate shipping rates. The library uses namespace and is PSR-4 compliant.</p>
  
  <p>I don't know how to integrate it with PrestaShop v1.5.6.2. How can I integrate the library with PrestaShop (using composer?) and make it available in the shipping modules using PrestaShop's autoloader?</p>