Merge branch 'master' into select-block

dist/PlaneExt.d.ts

@@ -0,0 +1,7 @@
+import * as THREE from 'three';
+import { Vector3, Line3, Plane } from "three";
+export declare class PlaneExt extends Plane {
+    constructor(normal?: Vector3, constant?: number);
+    intersectLine(line: Line3, optionalTarget?: Vector3, extendLine?: boolean): Vector3;
+    intersectRay(ray: THREE.Ray, optionalTarget?: Vector3, extendLine?: boolean): Vector3;
+}