move dependencies to vendor

vendor/github.com/opencontainers/runc/libcontainer/console.go

@@ -0,0 +1,15 @@
+package libcontainer
+
+import "io"
+
+// Console represents a pseudo TTY.
+type Console interface {
+	io.ReadWriter
+	io.Closer
+
+	// Path returns the filesystem path to the slave side of the pty.
+	Path() string
+
+	// Fd returns the fd for the master of the pty.
+	Fd() uintptr
+}