Allow exceptions to throw their own error codes from within.

Temp work-around for tons of logic until upgrade to 5.5 is done.

app/Exceptions/Repository/RecordNotFoundException.php

@@ -26,4 +26,11 @@ namespace Pterodactyl\Exceptions\Repository;
 
 class RecordNotFoundException extends \Exception
 {
+    /**
+     * @return int
+     */
+    public function getStatusCode()
+    {
+        return 404;
+    }
 }