Complete IPFS Core API from both js-ipfs and go-ipfs

[flyingzumwalt]

This is from the original sprint notes. @diasdavid @whyrusleeping can you clarify? Might have already been addressed in sprint ipfs/team-mgmt#310

[daviddias]

It is essentially about this: https://github.com/ipfs/interface-ipfs-core

Tasks:

• Spec out remaining core API https://github.com/ipfs/interface-ipfs-core/tree/master/API
  • Files, the Mutable File System API ipfs-inactive/interface-js-ipfs-core#38
  • name API ipfs-inactive/interface-js-ipfs-core#37
  • + all the others
• Make go use them core-api for Go implementation ipfs-inactive/interface-js-ipfs-core#66

[lidel]

I believe this can be closed.
Core API lives in https://github.com/ipfs/js-ipfs/tree/master/docs/core-api and go-ipfs can be used as CoreAPI lib (ipfs-inactive/interface-js-ipfs-core#66 (comment))