feat(parser): Support LockupView and it's child nodes (#609)

src/parser/classes/LockupMetadataView.ts

@@ -0,0 +1,18 @@
+import { YTNode } from '../helpers.js';
+import { Parser, type RawNode } from '../index.js';
+import ContentMetadataView from './ContentMetadataView.js';
+import Text from './misc/Text.js';
+
+export default class LockupMetadataView extends YTNode {
+  static type = 'LockupMetadataView';
+
+  title: Text;
+  metadata: ContentMetadataView | null;
+
+  constructor(data: RawNode) {
+    super();
+
+    this.title = Text.fromAttributed(data.title);
+    this.metadata = Parser.parseItem(data.metadata, ContentMetadataView);
+  }
+}