fix(libp2phttp): bound NewStream timeout

[algorandskiy]

libp2phttp.streamRoundTripper.RoundTrip uses a context from http.Request when establishing a new stream.
Suppose a user expects to fetch very large files with multiplexed http so they set very large timeout into http.Request context. Then suppose one of the servers does not respond to protocols negotiation for some reason (for example by reaching out max connections set via resource manager).
This makes NewStream to stuck in reading server response for potentially for very long time until the context with high timeout value expires.

Tested manually.

[MarcoPolo]

Thanks.

I like this change, but I don't love that it brings in basichost as a dependency. It might be better to simply copy the default timeout to this package instead.

[algorandskiy]

Thanks for the review. Fixed.