GitLab

limit the size of blocks sent in a response to 512k a.l.a. bitswap

Adds callbacks to manage connections, also removes network receiver methods from public graphsync
interface, and updates libp2p to handle go-libp2p-core refactor

Refactor peer manager to handle abstract processes, then use the base class for the peer message
manager and the peer response manager

Create a response manager for a single peer to handle assembling and managing responses for a given
peer