[#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/OwnerId.cs

@@ -0,0 +1,54 @@
+using System;
+
+using FrostFS.Refs;
+using FrostFS.SDK.Cryptography;
+
+using Google.Protobuf;
+
+using Microsoft.Extensions.Caching.Memory;
+
+namespace FrostFS.SDK.Client.Mappers.GRPC;
+
+public static class OwnerIdMapper
+{
+    private static readonly MemoryCacheEntryOptions _oneHourExpiration = new MemoryCacheEntryOptions()
+        .SetSlidingExpiration(TimeSpan.FromHours(1))
+        .SetSize(1);
+
+    public static OwnerID ToMessage(this FrostFsOwner model)
+    {
+        if (model is null)
+        {
+            throw new ArgumentNullException(nameof(model));
+        }
+
+        if (!Caches.Owners.TryGetValue(model, out OwnerID? message))
+        {
+            message = new OwnerID
+            {
+                Value = ByteString.CopyFrom(model.ToHash())
+            };
+
+            Caches.Owners.Set(model, message, _oneHourExpiration);
+        }
+
+        return message!;
+    }
+
+    public static FrostFsOwner ToModel(this OwnerID message)
+    {
+        if (message is null)
+        {
+            throw new ArgumentNullException(nameof(message));
+        }
+
+        if (!Caches.Owners.TryGetValue(message, out FrostFsOwner? model))
+        {
+            model = new FrostFsOwner(Base58.Encode(message.Value.ToByteArray()));
+
+            Caches.Owners.Set(message, model, _oneHourExpiration);
+        }
+
+        return model!;
+    }
+}