depricate UniquieID<TargetType> and adjust json converters

Pilz.Cryptography/Json.Converters/UniquieIDStringJsonConverter.TargetType.cs

@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Pilz.Json.Converters
+{
+    [Obsolete]
+    public class UniquieIDStringJsonConverter<TargetType> : UniquieIDStringJsonConverter
+    {
+    }
+}