refactor(cli): move cmd/uncloud to cmd/uc, change the artifact name uncloud_* -> uc_*

cmd/uc/machine/root.go

@@ -0,0 +1,24 @@
+package machine
+
+import (
+	"github.com/spf13/cobra"
+)
+
+func NewRootCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "machine",
+		Aliases: []string{"m"},
+		Short:   "Manage machines in the cluster.",
+	}
+	cmd.AddCommand(
+		NewAddCommand(),
+		NewInitCommand(),
+		NewListCommand(),
+		NewLogsCommand(),
+		NewRenameCommand(),
+		NewRmCommand(),
+		NewRTTCommand(),
+		NewUpdateCommand(),
+	)
+	return cmd
+}