refactor!: finish parser migration

Finally! :)

This removes all code related to the old parser.

#65

lib/parser/classes/menus/MenuServiceItemDownload.js

@@ -0,0 +1,14 @@
+'use strict';
+
+const NavigationEndpoint = require('../NavigationEndpoint');
+
+class MenuServiceItemDownload {
+  type = 'MenuServiceItemDownload';
+
+  constructor(data) {
+    this.has_separator = data.hasSeparator;
+    this.endpoint = new NavigationEndpoint(data.navigationEndpoint || data.serviceEndpoint);
+  }
+}
+
+module.exports = MenuServiceItemDownload;