Libp2p Logger Integration

[saul-jb]

Libp2p logger integration would be great addition for debugging.

https://github.com/libp2p/js-libp2p-logger

Although it would be nice to see it added to 2.0.0 (#75), it is a minor change that can be added at some point further down the track.

[tabcat]

yea error logging especially needs to be improved so this will be great in 2.0.0

[tabcat]

Needed to release v2 before I was able to add this. This should be the next thing added. I may make a another release tracker with some feats/fixes with this included.