missing include

Change-Id: Ie122f39f8fd3c8613eea7c9dc17e2c63d4b45823
Reviewed-on: https://gerrit.libreoffice.org/84091
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
diff --git a/include/svtools/table/tablemodel.hxx b/include/svtools/table/tablemodel.hxx
index 907e2d2..088b9a8 100644
--- a/include/svtools/table/tablemodel.hxx
+++ b/include/svtools/table/tablemodel.hxx
@@ -32,6 +32,7 @@

#include <boost/optional.hpp>
#include <memory>
#include <vector>
#include <o3tl/typed_flags_set.hxx>

namespace svt { namespace table { class ITableDataSort; } }