Add JavaScript bindings for YGHasNewLayout (#1631)

Summary:
Adds JavaScript bindings for YGHasNewLayout which introduces
two new node methods: `hasNewLayout()` and `markLayoutSeen()`.

Closes https://github.com/facebook/yoga/issues/681

Pull Request resolved: https://github.com/facebook/yoga/pull/1631

Reviewed By: joevilches

Differential Revision: D55213296

Pulled By: NickGerleman

fbshipit-source-id: 161288c3f54c2b82a6b2b842387916fe8713c2c9

javascript/src/wrapAssembly.ts

@@ -120,6 +120,8 @@ export type Node = {
   isDirty(): boolean;
   isReferenceBaseline(): boolean;
   markDirty(): void;
+  hasNewLayout(): boolean;
+  markLayoutSeen(): void;
   removeChild(child: Node): void;
   reset(): void;
   setAlignContent(alignContent: Align): void;