This adds the ability to easily protect routes or controllers using middleware.

From the README:

This package includes middleware that will deny routes depending on whether a feature is enabled or not.

To use the middle, add the following to your `app/Http/Kernel.php`:

```php
protected $routeMiddleware = [
    // other middleware
    'feature.enabled' => \MikeFrancis\LaravelUnleash\Middleware\FeatureEnabled::class,
    'feature.disabled' => \MikeFrancis\LaravelUnleash\Middleware\FeatureDisabled::class,
];
```

You can then use the middleware in your routes:

```php
Route::get('/new-feature-path', function () {
    //
})->middleware('feature.enabled:myAwesomeFeature');

Route::get('/terrible-legacy-path', function () {
    //
})->middleware('feature.disabled:myAwesomeFeature');
```

or in your controllers like so:

```php
class ExampleController extends Controller
{
    public function __construct()
    {
        $this->middleware('feature.enabled:myAwesomeFeature');
        // or
        $this->middleware('feature.disabled:myAwesomeFeature');
    }
}
```

You cannot currently use dynamic strategy arguments with Middleware.