Imports of package metrics

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/golang/glogPackage glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.
k8s.io/heapster/api/v1/types
k8s.io/kubernetes/pkg/api
k8s.io/kubernetes/pkg/api/resource
k8s.io/kubernetes/pkg/client/unversioned
k8s.io/kubernetes/pkg/fields
k8s.io/kubernetes/pkg/labels
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.
timePackage time provides functionality for measuring and displaying time.