Imports of package supervisor

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
github.com/containerd/containerd
github.com/containerd/containerd/services/server/config
github.com/containerd/containerd/sys
github.com/docker/docker/pkg/pidfilePackage pidfile provides structure and helper functions to create and remove PID file.
github.com/docker/docker/pkg/processPackage process provides a set of basic functions to manage individual processes.
github.com/docker/docker/pkg/system
github.com/pelletier/go-tomlPackage toml is a TOML parser and manipulation library.
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.
os/execPackage exec runs external commands.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
runtimePackage runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
stringsPackage strings implements simple functions to manipulate UTF-8 encoded strings.
timePackage time provides functionality for measuring and displaying time.