Add Shell.FileList(path)
Add Shell.FileList(path)

So I can bind to the Unix-filesystem-layer version of ls that landed
with [1].  I've spun this layer off into it's own file to avoid
crowding shell.go.

[1]: https://github.com/ipfs/go-ipfs/pull/1348

RealImage/go-ipfs-api,42cc/go-ipfs-api