Add TCP, UDP, and TLS networking capabilities

[mpilquist]

I don't feel as good about this one as Files[F], but interested in thoughts.

[SystemFw]

I think the basic idea is solid, especially because we have a passthrough instance so the user can choose to just use Async anyway (we need docs for that). The only thing is that maybe it's a bit too granular? we could have Files[F] and Network[F] (or Sockets[F]), although it's arbitrary any way.

Why don't you feel as good about this one?

[mpilquist]

👍 for Network[F] instead of tcp.Sockets[F], udp.Sockets[F], tls.TLS[F]

Seems kind of odd so directly wrap Async[F] and have no operations on the capability trait. It's okay though.

[SystemFw]

Seems kind of odd so directly wrap Async[F] and have no operations on the capability trait. It's okay though.

mm ok I see