Imports of package schemaversion

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/Microsoft/hcsshim/internal/hcs/schema2
github.com/Microsoft/hcsshim/osversion
github.com/sirupsen/logrusPackage logrus is a structured logger for Go, completely API compatible with the standard library logger.