Imports of package verity

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/Microsoft/hcsshim/ext4/dmverity
github.com/Microsoft/hcsshim/ext4/tar2ext4
github.com/Microsoft/hcsshim/internal/log
github.com/Microsoft/hcsshim/internal/protocol/guestresource
github.com/pkg/errorsPackage errors provides simple error handling primitives.
github.com/sirupsen/logrusPackage logrus is a structured logger for Go, completely API compatible with the standard library logger.
osPackage os provides a platform-independent interface to operating system functionality.