FEATURE: add registering for new search engines.

app/Handlers/Contracts/SearchHandler.php

@@ -0,0 +1,17 @@
+<?php
+namespace App\Handlers\Contracts;
+
+interface SearchHandler {
+    public function getId();
+
+    public function getName();
+
+    /**
+     * Search for given patttern/term
+     *
+     * @param string $term searched word
+     *
+     * @return array list of found objects
+     */
+    public function search($term);
+}