Add IPFS integration

[Vectorrent]

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• Did you write any new necessary tests?

Implements the use_ipfs argument, as documented here.

IPFS nodes will not respond to ping in the way Hivemind expects, so we also set ensure_bootstrap_success to False, when IPFS is used. Nevertheless, HivemindStrategy will connect to peers successfully once training begins.

Also added the bootstrap_timeout and wait_timeout arguments. Because the initial_peers format for IPFS omits the IP address (/p2p/XYZ123...), we need to set these higher, to allow IPFS time to connect. Else, 90% of attempts to join an IPFS-bootstrapped swarm will fail.

[codecov]

Codecov Report

Merging #35 (cb87106) into main (0835ea0) will not change coverage.
Report is 2 commits behind head on main.
The diff coverage is n/a.

Additional details and impacted files

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[Borda]

Looks good, can you please add test for it..

[Vectorrent]

I'm not really sure how to write a proper test here. I setup the IPFS settings to just use the same defaults as Hivemind itself, so by default - nothing has changed. I would have written a full test for multiple peers over the IPFS network - but the existing one is marked as @pytest.mark.skip(); and so, I don't have a functional example to even start with.

Anyway, I also couldn't get this project to install on Arch Linux (failures with grpcio-tools), so I had to use a Docker environment for the testing. You can build the image with docker compose build and you can run tests with docker compose up.

I also added a couple more relevant settings. use_auto_relay=True is extremely helpful in connecting peers across the Internet.

[Vectorrent]

I also updated Hivemind to its latest version. It seems to be passing all tests, and it's working well in my limited production testing.