add custom user agent

Author: maxiloc

src/AlgoliaServiceProvider.php

@@ -2,13 +2,19 @@
 
 namespace AlgoliaSearch\Laravel;
 
+use AlgoliaSearch\Version;
 use Illuminate\Support\Facades\Event;
 use Illuminate\Support\ServiceProvider;
 
 class AlgoliaServiceProvider extends ServiceProvider
 {
     public function register()
     {
+        Version::addPrefixUserAgentSegment('Laravel integration', '1.6.2');
+        Version::addSuffixUserAgentSegment('PHP', phpversion());
+        $laravel = app();
+        Version::addSuffixUserAgentSegment('Laravel', $laravel::VERSION);
+
         $this->registerManager();
 
         Event::subscribe('\AlgoliaSearch\Laravel\EloquentSubscriber');