Unexport container commands

This patch deprecates exported container commands and moves the
implementation details to an unexported function.

Commands that are affected include:
- container.NewRunCommand
- container.NewExecCommand
- container.NewPsCommand
- container.NewContainerCommand
- container.NewAttachCommand
- container.NewCommitCommand
- container.NewCopyCommand
- container.NewCreateCommand
- container.NewDiffCommand
- container.NewExportCommand
- container.NewKillCommand
- container.NewLogsCommand
- container.NewPauseCommand
- container.NewPortCommand
- container.NewRenameCommand
- container.NewRestartCommand
- container.NewRmCommand
- container.NewStartCommand
- container.NewStatsCommand
- container.NewStopCommand
- container.NewTopCommand
- container.NewUnpauseCommand
- container.NewUpdateCommand
- container.NewWaitCommand
- container.NewPruneCommand

Signed-off-by: Alano Terblanche <18033717+Benehiko@users.noreply.github.com>

cli/command/container/unpause.go

@@ -17,7 +17,13 @@ type unpauseOptions struct {
 }
 
 // NewUnpauseCommand creates a new cobra.Command for `docker unpause`
+//
+// Deprecated: Do not import commands directly. They will be removed in a future release.
 func NewUnpauseCommand(dockerCli command.Cli) *cobra.Command {
+	return newUnpauseCommand(dockerCli)
+}
+
+func newUnpauseCommand(dockerCli command.Cli) *cobra.Command {
 	var opts unpauseOptions
 
 	cmd := &cobra.Command{