The IPFS Network package handles all of the peer-to-peer networking. It connects to other hosts, it encrypts communications, it muxes messages between the network's client services and target hosts. It has multiple subcomponents:
-`Conn` - a connection to a single Peer
-`MultiConn` - a set of connections to a single Peer
-`SecureConn` - an encrypted (tls-like) connection
-`Swarm` - holds connections to Peers, multiplexes from/to each `MultiConn`
-`Muxer` - multiplexes between `Services` and `Swarm`. Handles `Requet/Reply`.
-`Service` - connects between an outside client service and Network.
-`Handler` - the client service part that handles requests
