message: feat(gateway): add raw event
diff: @@ -115,6 +115,8 @@ class Gateway {
  await this.cache.set('seq', s)
  }
  if (t !== null && t !== undefined) {
  + this.client.emit('raw', t, d)
  +
  const handler = gatewayHandlers[t]
  if (handler !== undefined) {
  