Merge pull request #19711 from Mugen87/dev49

TS: Add RoomEnvironment.d.ts.

examples/jsm/environments/RoomEnvironment.d.ts

@@ -0,0 +1,7 @@
+import { Scene } from '../../../src/Three';
+
+export class RoomEnvironment extends Scene {
+
+	constructor();
+
+}