Add main business logic of this program

Now we can download torrents like old Python
version does.

domains/fetcher/v1/structs.go

@@ -0,0 +1,10 @@
+// NNM-Club torrent filess mass downloader
+// Created for Uploaders group
+// Copyright (c) 2012-2019 Vladimir "fat0troll" Hodakov
+
+package fetcherv1
+
+type forumTopic struct {
+	Link string
+	Name string
+}