Move to 4 flavor build and tests

javascript/sources/index.asmjs.js

@@ -0,0 +1,21 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ * @format
+ */
+
+const wrapLib = require('./entry');
+const loadYoga = require('./asmjs-async');
+
+module.exports = {
+  load: () => {
+    return loadYoga().then(wrapLib);
+  }
+}
+
+export type * from './YGEnums.js';
+export type * from './entry';