Imports of gcs command

PathSynopsis
flagPackage flag implements command-line flag parsing.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/Microsoft/opengcs/service/gcs/bridgePackage bridge defines the bridge struct, which implements the control loop and functions of the GCS's bridge client.
github.com/Microsoft/opengcs/service/gcs/core/gcsPackage gcs defines the core functionality of the GCS.
github.com/Microsoft/opengcs/service/gcs/oslayer/realos
github.com/Microsoft/opengcs/service/gcs/runtime/runcPackage runc defines an implementation of the Runtime interface which uses runC as the container runtime.
github.com/Microsoft/opengcs/service/gcs/transportPackage transport defines the interfaces describing a connection-like data transport mechanism.
github.com/Microsoft/opengcs/service/libs/commonutils
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.