move export models to jslib

src/models/export/collectionWithId.ts

@@ -0,0 +1,13 @@
+import { Collection } from './collection';
+
+import { CollectionView } from '../view/collectionView';
+
+export class CollectionWithId extends Collection {
+    id: string;
+
+    // Use build method instead of ctor so that we can control order of JSON stringify for pretty print
+    build(o: CollectionView) {
+        this.id = o.id;
+        super.build(o);
+    }
+}