[#28] Clients: Make immutable parameters

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

src/FrostFS.SDK.Client/Parameters/PrmContainerGet.cs

@@ -1,6 +1,40 @@
 namespace FrostFS.SDK.Client;
 
-public sealed class PrmContainerGet(FrostFsContainerId container, CallContext? ctx = null) : PrmBase(ctx)
+public readonly struct PrmContainerGet(FrostFsContainerId container, string[]? xheaders = null) : System.IEquatable<PrmContainerGet>
 {
-    public FrostFsContainerId Container { get; set; } = container;
+    public FrostFsContainerId Container { get; } = container;
+
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public string[] XHeaders { get; } = xheaders ?? [];
+
+    public override readonly bool Equals(object obj)
+    {
+        if (obj == null || obj is not PrmContainerGet)
+            return false;
+
+        return Equals((PrmContainerGet)obj);
+    }
+
+    public readonly bool Equals(PrmContainerGet other)
+    {
+        return GetHashCode() == other.GetHashCode();
+    }
+
+    public override readonly int GetHashCode()
+    {
+        return Container.GetHashCode()
+            ^ XHeaders.GetHashCode();
+    }
+
+    public static bool operator ==(PrmContainerGet left, PrmContainerGet right)
+    {
+        return left.Equals(right);
+    }
+
+    public static bool operator !=(PrmContainerGet left, PrmContainerGet right)
+    {
+        return !(left == right);
+    }
 }