[Feature Request] Support events as in the node amqplib

[AndLut]

Hello!

Thank you for your great work!
I was just browsing through the node amqplib source code and stumbled across the following:
https://github.com/amqp-node/amqplib/blob/main/lib/connection.js#L592

It seems, that in here, depending on the id of a received frame, different connection states can be assumed, especially also if the connection is blocked/unblocked. Would it be possible to also integrate this into your project? I think the best place would probably be at https://github.com/lenkan/deno-amqp/blob/master/src/amqp_multiplexer.ts#L147, but I'm not totally sure about this.