Improved CURL sample

Author: JocaPC

samples/features/sql-clr/Curl/Curl.cs

@@ -75,7 +75,8 @@ private static void AddHeader(SqlChars H, WebClient client)
         {
             var header = H.ToSqlString().Value;
             if (!string.IsNullOrWhiteSpace(header))
-                client.Headers.Add(header);
+                foreach(string h in header.Split(';'))
+                    client.Headers.Add(h);
         }
     }
 };