Stream handling

[wemeetagain]

libp2p/js-libp2p#1301 increases the default stream limits so we can go with these for now, we can always tune further at a later date.

Talking to some of the libp2p folk, single, full-duplex or long-lived half-duplex gossipsub streams remove a bit of flexibility around things like low-power devices which may not be able to hold a connection open forever and may just want to periodically connect to send a message so I guess we should handle multiple incoming streams, also ones that only exist for the duration of one message, etc.

Originally posted by @achingbrain in #293 (comment)

[wemeetagain]

Closing this for now, if the spec changes or if usage patterns emerge for ephemeral gossipsub streams, we can reconsider