Update QueryObjectDataSource.php

Author: thorewi

src/QueryObjectDataSource.php

@@ -6,6 +6,7 @@
 use Ublaboo\DataGrid\Filter\FilterDate;
 use Ublaboo\DataGrid\Filter\FilterDateRange;
 use Ublaboo\DataGrid\Filter\FilterText;
+use Ublaboo\DataGrid\Filter\OneColumnFilter;
 use Ublaboo\DataGrid\Utils\DateTimeHelper;
 use Ublaboo\DataGrid\DataSource\IDataSource;