GitLab

* refactor(tests): introduce testify

Introduce testify, cleanup lots of tests, add channel assertions to simplify channel tests, make
more readable

* refactor(tests): clean up error messages

* fix(deps): remove bitswap

remove accidentally added bitswap

* refactor(tests): put expected in correct position

Make sure for require.equal that the expected value is the first value

Remove the encode and decode on ipldbridge as part of ramp up to removing entirely
Also move selector encode/decode to within protobuf encoding

To reduce future import cycles, and expose more types properly, move the root package to an
interface/types file and move the main implementation into /impl. This also exposes an interface
other implementers can replace.

return a boolean instead of an error if an extention is found on a message

Per https://github.com/ipld/specs/pull/205, metadata is now an extension, and further extensions
will be added soon

Previously, we allowed the last message send attempt to run to maxRetries if the queue was shutdown,
which also generated warning logs. Now, if a send attempt fails, check that the queue has shutdown
and immediately return if it has

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

Updates IPLD Bridge to use latest go-ipld-prime and runs and actual round trip test using GraphSync,
go-ipld-prime, and real selectors

Convert GraphSyncRequest and GraphSyncResponse to structs, track by value, pass directly into add
methods on GraphSyncMessage

Add the ability to send blocks and receive notification when complete to messagequeue

Create a message queue to pool messages for a single peer and send them