feat(code): hoist on init (#11)

Allow components to subscribe to init, and hoist statics when dynamic import has finished loading.

README.md

@@ -754,6 +754,17 @@ const ChunkComponent = chunk({...});
 ChunkComponent.getChunkLoader();
 ```
 
+#### `hoistOnInit(getComponent: () => node): void`
+
+This is a static method that can be used to subscribe components to which statics will be hoisted on initialization.
+
+Note: this requires `hoistStatics: true`
+
+```js
+const ChunkComponent = chunk({...});
+
+ChunkComponent.hoistOnInit(() => MyParentHOC);
+```
 
 ### `WrappedComponent`
 

__tests__/test.js

@@ -325,6 +325,20 @@ describe('chunk', () => {
       delete MyComponent.myStatic;
     });
 
+    test('hoists statics on init', async () => {
+      function HOC() {}
+
+      const jestFn = jest.fn();
+      MyComponent.myStatic = jestFn;
+      let ChunkMyComponent = chunk(createLoader(400, () => MyComponent), { hoistStatics: true })();
+      ChunkMyComponent.hoistOnInit(() => HOC);
+
+      await preloadAll();
+
+      expect(HOC.myStatic).toBe(jestFn);
+      delete MyComponent.myStatic;
+    });
+
     test('does not apply statics on error', async () => {
       let ChunkMyComponent = chunk(createLoader(400, () => { throw new Error(); }), {
         hoistStatics: true