Feature request: default parameters values

[mtlukaszczyk]

Hello,

Laravel has default values function for parameters in routing:

Route::get('test/test', function($id) {
    echo $id;
})->defaults('id', 1); // or setDefaults(['id' => 1])

check Illuminate\Routing\Route::defaults or setDefaults

This feature is missing in this package.

[freekmurze]

Feel free to PR this, make sure to include tests 👍