Add index root

example/index.js

@@ -1,4 +1,4 @@
-import { ThreeTilesRenderer } from '../src/ThreeTilesRenderer.js';
+import { ThreeTilesRenderer } from '../src/index.js';
 import {
 	Scene,
 	DirectionalLight,

src/index.js

@@ -0,0 +1,7 @@
+import { ThreeTilesRenderer } from './three/ThreeTilesRenderer.js';
+import { ThreeB3DMLoader } from './three/ThreeB3DMLoader';
+
+import { TilesRenderer } from './TilesRenderer.js';
+import { B3DMLoader } from './B3DMLoader';
+
+export { ThreeTilesRenderer, ThreeB3DMLoader, TilesRenderer, B3DMLoader };