Enable changing the route group prefix

[tormjens]

Thanks for a great package.

While using this I was annoyed that the name of the route group was pre-defined as it did not match up with the route naming convention for the rest of my application.

This PR solves this by allowing the prefix to be changed via a config file.

By default the routes returning the JSON responses are prefixed with galahad/addressing. You can change this by creating a config file (addressing.php) in your config directory with these contents.

<?php

return [
    'route' => [
        'prefix' => 'countries' // change this to whatever you'd like
    ],
];

[inxilpro]

This looks great! Thanks for contributing.

Would you be able add the config to the project per the Laravel docs? Basically a publishes() and mergeConfigFrom() call…

[tormjens]

Done! :)

[inxilpro]

Made a few minor changes. Do you see any issue with them?

[tormjens]

Looks good 👍🏻