feat: Filemagedon

Signed-off-by: Avior <git@avior.me>

src/models/Migrations/Migration.d.ts

@@ -0,0 +1,10 @@
+import type Client from 'models/Clients/Client'
+
+export default interface Migration {
+	/**
+	 * timestamp in UTC
+	 */
+	date: number
+	up(client: Client): Promise<boolean>
+	down?(client: Client): Promise<boolean>
+}