[#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/Containers/FrostFsContainerId.cs

@@ -0,0 +1,58 @@
+using FrostFS.Refs;
+using FrostFS.SDK.Client;
+using FrostFS.SDK.Client.Mappers.GRPC;
+using FrostFS.SDK.Cryptography;
+
+namespace FrostFS.SDK;
+
+public class FrostFsContainerId
+{
+    private string? modelId;
+    private ContainerID? containerID;
+
+    public FrostFsContainerId(string id)
+    {
+        this.modelId = id;
+    }
+
+    internal FrostFsContainerId(ContainerID id)
+    {
+        this.containerID = id;
+    }
+
+    public string GetValue()
+    {
+        if (this.modelId != null)
+            return this.modelId;
+
+        if (containerID != null)
+        {
+            this.modelId = Base58.Encode(containerID.Value.ToByteArray());
+            return this.modelId;
+        }
+
+        throw new FrostFsInvalidObjectException();
+    }
+
+    internal ContainerID ContainerID
+    {
+        get
+        {
+            if (this.containerID != null)
+                return this.containerID;
+
+            if (modelId != null)
+            {
+                this.containerID = this.ToMessage();
+                return this.containerID;
+            }
+
+            throw new FrostFsInvalidObjectException();
+        }
+    }
+
+    public override string ToString()
+    {
+        return GetValue();
+    }
+}