Add Event Types

this makes addEventListener on GPUDevice have the right type
information.

dist/main.d.ts

@@ -0,0 +1,16 @@
+import './index.d.ts';
+
+declare global {
+
+interface GPUDeviceEventMap  {
+  "uncapturederror": GPUUncapturedErrorEvent;
+}
+
+interface GPUDevice {
+    addEventListener<K extends keyof GPUDeviceEventMap>(type: K, listener: (this: GPUDevice, ev: GPUDeviceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
+    removeEventListener<K extends keyof GPUDeviceEventMap>(type: K, listener: (this: GPUDevice, ev: GPUDeviceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
+    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
+}
+
+}

package.json

@@ -5,7 +5,7 @@
   "bugs": "https://github.com/gpuweb/types/issues",
   "version": "0.1.53",
   "main": "",
-  "types": "dist/index.d.ts",
+  "types": "dist/main.d.ts",
   "license": "BSD-3-Clause",
   "files": [
     "dist/**/*"