[#26] All: Remove V2 from naming

Rename project, namespaces and class names

Signed-off-by: Pavel Gross <p.gross@yadro.com>

src/FrostFS.SDK.Client/Mappers/Netmap/PlacementPolicy.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Linq;
+
+using FrostFS.Netmap;
+
+namespace FrostFS.SDK.Client;
+
+public static class PlacementPolicyMapper
+{
+    public static FrostFsPlacementPolicy ToModel(this PlacementPolicy placementPolicy)
+    {
+        if (placementPolicy is null)
+        {
+            throw new ArgumentNullException(nameof(placementPolicy));
+        }
+
+        return new FrostFsPlacementPolicy(
+            placementPolicy.Unique,
+            placementPolicy.Replicas.Select(replica => replica.ToModel()).ToArray()
+        );
+    }
+}