Imports of package libcontainer

PathSynopsis
encoding/jsonPackage json implements encoding and decoding of JSON as defined in RFC 7159.
github.com/docker/libcontainer/cgroups
github.com/docker/libcontainer/cgroups/fs
github.com/docker/libcontainer/mount
github.com/docker/libcontainer/network
ioPackage io provides basic interfaces to I/O primitives.
osPackage os provides a platform-independent interface to operating system functionality.
path/filepathPackage filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.