Imports of package streamformatter

PathSynopsis
encoding/jsonPackage json implements encoding and decoding of JSON as defined in RFC 7159.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/docker/docker/pkg/jsonmessage
github.com/docker/docker/pkg/progress
ioPackage io provides basic interfaces to I/O primitives.