[#1384] neofs-cli: move storagegroup command to a separate package

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

cmd/neofs-cli/modules/storagegroup/root.go

@@ -0,0 +1,41 @@
+package storagegroup
+
+import (
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
+	objectCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/object"
+	"github.com/spf13/cobra"
+)
+
+// Cmd represents the storagegroup command
+var Cmd = &cobra.Command{
+	Use:   "storagegroup",
+	Short: "Operations with Storage Groups",
+	Long:  `Operations with Storage Groups`,
+	PersistentPreRun: func(cmd *cobra.Command, args []string) {
+		// bind exactly that cmd's flags to
+		// the viper before execution
+		commonflags.Bind(cmd)
+		commonflags.BindAPI(cmd)
+	},
+}
+
+func init() {
+	storageGroupChildCommands := []*cobra.Command{
+		sgPutCmd,
+		sgGetCmd,
+		sgListCmd,
+		sgDelCmd,
+	}
+
+	Cmd.AddCommand(storageGroupChildCommands...)
+
+	for _, sgCommand := range storageGroupChildCommands {
+		objectCli.InitBearer(sgCommand)
+		commonflags.InitAPI(sgCommand)
+	}
+
+	initSGPutCmd()
+	initSGGetCmd()
+	initSGListCmd()
+	initSGDeleteCmd()
+}