[#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/Models/Object/FrostFsObjectId.cs

@@ -0,0 +1,33 @@
+using System;
+
+using FrostFS.SDK.Cryptography;
+
+namespace FrostFS.SDK;
+
+public class FrostFsObjectId(string id)
+{
+    public string Value { get; } = id;
+
+    public static FrostFsObjectId FromHash(byte[] hash)
+    {
+        if (hash is null)
+        {
+            throw new ArgumentNullException(nameof(hash));
+        }
+
+        if (hash.Length != Constants.Sha256HashLength)
+            throw new FormatException("ObjectID must be a sha256 hash.");
+
+        return new FrostFsObjectId(Base58.Encode(hash));
+    }
+
+    public byte[] ToHash()
+    {
+        return Base58.Decode(Value);
+    }
+
+    public override string ToString()
+    {
+        return Value;
+    }
+}