Introduce pass-through block stats

Signed-off-by: Sara Merzel <sara.merzel@huawei.com>
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@huawei.com>

tests/functional/pyocf/types/stats/shared.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2021 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -73,6 +74,9 @@ class BlocksStats(Structure):
         ("volume_rd", _Stat),
         ("volume_wr", _Stat),
         ("volume_total", _Stat),
+        ("pt_rd", _Stat),
+        ("pt_wr", _Stat),
+        ("pt_total", _Stat),
     ]