Represents a serializer for Strings.
Inheritance: MongoDB.Bson.Serialization.Serializers.BsonBaseSerializer
        public override object Deserialize(BsonReader bsonReader, Type nominalType, IBsonSerializationOptions options)
        {
            var bsonType = bsonReader.GetCurrentBsonType();
              if (bsonType == BsonType.Null)
              {
            bsonReader.ReadNull();
            return null;
              }

              var serializer = new StringSerializer();
              var nvc = new NameValueCollection();

              bsonReader.ReadStartArray();
              while (bsonReader.ReadBsonType() != BsonType.EndOfDocument)
              {
            bsonReader.ReadStartArray();
            var key = (string) serializer.Deserialize(bsonReader, typeof (string), options);
            var val = (string) serializer.Deserialize(bsonReader, typeof (string), options);
            bsonReader.ReadEndArray();
            nvc.Add(key, val);
              }
              bsonReader.ReadEndArray();

              return nvc;
        }
        public override void Serialize(BsonWriter bsonWriter, Type nominalType, object value, IBsonSerializationOptions options)
        {
            if (value == null)
              {
            bsonWriter.WriteNull();
            return;
              }

              var serializer = new StringSerializer();
              var nvc = (NameValueCollection) value;

              bsonWriter.WriteStartArray();
              foreach (var key in nvc.AllKeys)
              {
            foreach (var val in nvc.GetValues(key))
            {
              bsonWriter.WriteStartArray();
              serializer.Serialize(bsonWriter, typeof (string), key, options);
              serializer.Serialize(bsonWriter, typeof (string), val, options);
              bsonWriter.WriteEndArray();
            }
              }
              bsonWriter.WriteEndArray();
        }