feat: add offListener method

[sanyuan0704]

Movitation

Now we have onMessage to bind the listener for events from other process. But sometimes we want to remove the listener , especially in React component:

useEffect(() => {
  const hander = () => {
    // xxx
  }

  parentPort.onMessage('syn', handler);

  return () => {
    parentPort.offListener('syn', handler)
  }
}, [])

API Change

Add a new method offListener for MessagePort:

interface Port<T extends MessageDefinition, D extends Direction<T>> {
  // eslint-disable-next-line no-use-before-define
  postMessage<U extends keyof T[D]>(t: U, p?: Payload<T, D, U>, extra?: Pick<ChannelMessage, 'd' | 'c' | 'e'>): void;
  onMessage<U extends keyof T[ReverseDirection<T, D>]>(
    t: U,
    handler: Callback<[Payload<T, ReverseDirection<T, D>, U>]>,
  ): void;
+  offListener<U extends keyof T[ReverseDirection<T, D>]>(
+    t: U,
+    handler?: Callback<[Payload<T, ReverseDirection<T, D>, U>]>,
+  ): void;
}

If the handler param is specified, we will remove the handler. If not, we will remove all the handlers for the event.