Support for more features

[monyuan]

• Managing groups and receiving group change events
• Joining via invite messages, using and creating invite links
• Sending and receiving typing notifications
• Sending and receiving delivery and read receipts

[gabrielolivrp]

Thank you for the suggestion of features; we will work to provide them as quickly as possible.

[monyuan]

Thanks for your selflessness, once you've done that I can help you with the testing

[monyuan]

Whether webhook supports websocket approach. I took a look at your code and your webhook request is not setting a timeout, which is causing it to keep waiting for the