Add migrated to .NET 8.0 variant of Hcs.Client

Hcs.ClientNet/GostCryptography/Asn1/Ber/Asn1CerInputStream.cs

@@ -0,0 +1,12 @@
+using System.IO;
+
+namespace GostCryptography.Asn1.Ber
+{
+    public class Asn1CerInputStream : Asn1BerInputStream
+    {
+        public Asn1CerInputStream(Stream inputStream)
+            : base(inputStream)
+        {
+        }
+    }
+}