script: Move code generation and webidl files to new script_bindings crate. (#35157)

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

components/script_bindings/webidls/XRBoundedReferenceSpace.webidl

@@ -0,0 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// skip-unless CARGO_FEATURE_WEBXR
+
+// https://immersive-web.github.io/webxr/#xrboundedreferencespace-interface
+
+[SecureContext, Exposed=Window, Pref="dom_webxr_enabled"]
+interface XRBoundedReferenceSpace : XRReferenceSpace {
+  readonly attribute /*FrozenArray<DOMPointReadOnly>*/ any boundsGeometry;
+};