[#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/Chain/ChainTarget.cs

@@ -0,0 +1,62 @@
+using System;
+
+using Frostfs.V2.Ape;
+
+namespace FrostFS.SDK.Client;
+
+public struct FrostFsChainTarget(FrostFsTargetType type, string name) : IEquatable<FrostFsChainTarget>
+{
+    private ChainTarget? chainTarget;
+
+    public FrostFsTargetType Type { get; } = type;
+
+    public string Name { get; } = name;
+
+    internal ChainTarget GetChainTarget()
+    {
+        return chainTarget ??= new ChainTarget
+        {
+            Type = GetTargetType(Type),
+            Name = Name
+        };
+    }
+
+    private static TargetType GetTargetType(FrostFsTargetType type)
+    {
+        return type switch
+        {
+            FrostFsTargetType.Undefined => TargetType.Undefined,
+            FrostFsTargetType.Namespace => TargetType.Namespace,
+            FrostFsTargetType.Container => TargetType.Container,
+            FrostFsTargetType.User => TargetType.User,
+            FrostFsTargetType.Group => TargetType.Group,
+            _ => throw new ArgumentException("Unexpected value for TargetType", nameof(type)),
+        };
+    }
+
+    public override readonly bool Equals(object obj)
+    {
+        var target = (FrostFsChainTarget)obj;
+        return Equals(target);
+    }
+
+    public override readonly int GetHashCode()
+    {
+        return $"{Name}{Type}".GetHashCode();
+    }
+
+    public static bool operator ==(FrostFsChainTarget left, FrostFsChainTarget right)
+    {
+        return left.Equals(right);
+    }
+
+    public static bool operator !=(FrostFsChainTarget left, FrostFsChainTarget right)
+    {
+        return !(left == right);
+    }
+
+    public readonly bool Equals(FrostFsChainTarget other)
+    {
+        return Type == other.Type && Name.Equals(other.Name, StringComparison.Ordinal);
+    }
+}