feat: convert network-topology to a full plugin (B1)

plugins/network-topology/migrations/mysql/0001_adopt_network_topology.sql

@@ -0,0 +1,12 @@
+-- network-topology 0001: adopt_network_topology
+-- Generated by termix-plugin migrations. Review before committing.
+
+CREATE TABLE IF NOT EXISTS `network_topology` (
+  `id` int AUTO_INCREMENT PRIMARY KEY,
+  `user_id` varchar(255) NOT NULL,
+  `topology` text,
+  `created_at` text NOT NULL DEFAULT (CURRENT_TIMESTAMP),
+  `updated_at` text NOT NULL DEFAULT (CURRENT_TIMESTAMP),
+  FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
+);
+RENAME TABLE `network_topology` TO `p_network_topology_graphs`;