Fixed missing include in core all

src/core/all.h

@@ -43,6 +43,7 @@
 #include "cell/all.h"
 #include "config/all.h"
 #include "debug/all.h"
+#include "grid_generator/all.h"
 #include "logging/all.h"
 #include "math/all.h"
 #include "mpi/all.h"

src/core/grid_generator/all.h

+//======================================================================================================================
+//
+//  This file is part of waLBerla. waLBerla is free software: you can
+//  redistribute it and/or modify it under the terms of the GNU General Public
+//  License as published by the Free Software Foundation, either version 3 of
+//  the License, or (at your option) any later version.
+//
+//  waLBerla is distributed in the hope that it will be useful, but WITHOUT
+//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+//  for more details.
+//
+//  You should have received a copy of the GNU General Public License along
+//  with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file all.h
+//! \ingroup core
+//! \author Florian Schornbaum <florian.schornbaum@fau.de>
+//! \brief Collective header file for module core
+//
+//======================================================================================================================
+
+#pragma once
+
+#include "HCPIterator.h"
+#include "SCIterator.h"