Streaming robustness proposal

[instantiator]

I gave some thought to streaming robustness, and here's an unsolicited/proposal for a change that might help to improve the robustness of streaming. You can provide optional timeout and restart parameters.

If timeout is provided, the TimelineHttpStreaming and TimelineWebSocketStreaming will count time since the last successful message (or comment) is received through the stream, and time out if it has been longer than the timeout provided.

If restart is true (default = true), then on a timeout, it will attempt to reconnect and restart the stream. If not, it'll throw the TimeoutException up the stack.

I've not given it a test yet - it's more of a proposal to talk through. What do you think?

Fixes: #89

[instantiator]

Change of heart, I don't think this proposed change should be throwing an exception when it's a (potentially) unawaited Task. I think it should probably just fire an event when it finishes.

[glacasa]

Thanks for your feedback, I think you are the first dev to actually use streaming with this lib

It's a big subject, and there are improvements to be done, like issue #76
I need to take some time to look at that
(Note : streaming doc is there https://docs.joinmastodon.org/methods/streaming/ )

[instantiator]

Thanks. Happy to help if I can. In the meantime I'm polling from my project 👍