Use interface-ipfs-core tests for the Swarm API

[daviddias]

Uncomment https://github.com/ipfs/js-ipfs/blob/master/test/http-api/interface-ipfs-core-over-ipfs-api/test-swarm.js#L5-L23 and make it work.

Needs:

• https://github.com/ipfs/js-libp2p-ipfs-browser/issues/83

[daviddias]

Ok, since ipfs/kubo#3218, what we needs is to fix the test swarm.connect in interface-ipfs-core to add the peer-id to the end of the multiaddr

[dignifiedquire]

@victorbjelkholm doing this now

[victorb]

@dignifiedquire 👍

[daviddias]

Thank you both :)