[#3] Added generate proto script create container method

Signed-off-by: Ilyas Niyazov <i.niyazov@yadro.com>

frostfs_sdk/models/dto/selector.py

@@ -0,0 +1,15 @@
+from dataclasses import dataclass
+
+from frostfs_sdk.models.enums.selector_clause import SelectorClause
+
+
+@dataclass(frozen=True)
+class Selector:
+    """
+    Data Transfer Object for Selector configuration
+    """
+    name: str
+    count: int
+    clause: SelectorClause
+    attribute: str
+    filter: str