test-api: refactor to fix circular dependencies

Signed-off-by: Kamil Gierszewski <kamil.gierszewski@huawei.com>

test/functional/api/cas/core_config.py

@@ -0,0 +1,16 @@
+#
+# Copyright(c) 2024-2025 Huawei Technologies Co., Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+from enum import Enum
+
+
+class CoreStatus(Enum):
+    empty = "empty"
+    active = "active"
+    inactive = "inactive"
+    detached = "detached"
+
+    def __str__(self):
+        return self.value