Make async, and test both wasm and asm using jest

javascript/jest.config.js

@@ -0,0 +1,14 @@
+/**
+ * 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.
+ *
+ * @format
+ */
+
+module.exports = {
+  setupFiles: ["./jest.setup.js"],
+  testRegex: '/tests/Facebook.Yoga/.*\\.js$',
+  watchman: false,
+}