[#242] node: Add tracing spans

Add tracing spans for PUT requests.
Add tracing spans for DELETE requests.
Add tracing spans for SELECT requests.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

pkg/local_object_storage/metabase/delete_test.go

@@ -1,6 +1,7 @@
 package meta_test
 
 import (
+	"context"
 	"errors"
 	"testing"
 
@@ -139,6 +140,6 @@ func metaDelete(db *meta.DB, addrs ...oid.Address) error {
 	var deletePrm meta.DeletePrm
 	deletePrm.SetAddresses(addrs...)
 
-	_, err := db.Delete(deletePrm)
+	_, err := db.Delete(context.Background(), deletePrm)
 	return err
 }