Merge pull request #9163 from chrisfromwork/exposeAbstractFeature

Update index to expose WebXRAbstractFeature for usage outside babylon.js packages

src/XR/features/index.ts

@@ -1,3 +1,4 @@
+export * from "./WebXRAbstractFeature";
 export * from "./WebXRHitTestLegacy";
 export * from "./WebXRAnchorSystem";
 export * from "./WebXRPlaneDetector";