Add headers from clang-tidy

Author: dschwoerer

include/bout/boundary_iterator.hxx

@@ -1,9 +1,17 @@
 #pragma once
 
+#include "bout/assert.hxx"
+#include "bout/bout_types.hxx"
+#include "bout/build_defines.hxx"
+#include "bout/field2d.hxx"
+#include "bout/field3d.hxx"
 #include "bout/mesh.hxx"
 #include "bout/parallel_boundary_region.hxx"
 #include "bout/sys/parallel_stencils.hxx"
 #include "bout/sys/range.hxx"
+#include <algorithm>
+#include <functional>
+#include <utility>
 
 class BoundaryRegionIter {
 public:

include/bout/parallel_boundary_region.hxx

@@ -3,9 +3,15 @@
 
 #include "bout/boundary_region.hxx"
 #include "bout/bout_types.hxx"
+#include <algorithm>
+#include <cmath>
+#include <cstdlib>
 #include <functional>
 #include <vector>
 
+#include "bout/build_defines.hxx"
+#include "bout/field2d.hxx"
+#include "bout/region.hxx"
 #include "bout/sys/parallel_stencils.hxx"
 #include <bout/field3d.hxx>
 #include <bout/mesh.hxx>

include/bout/yboundary_regions.hxx

@@ -1,7 +1,13 @@
 #pragma once
 
 #include "./boundary_iterator.hxx"
+#include "bout/assert.hxx"
+#include "bout/boutexception.hxx"
+#include "bout/globals.hxx"
+#include "bout/options.hxx"
 #include "bout/parallel_boundary_region.hxx"
+#include <memory>
+#include <vector>
 
 /// This class allows to simplify iterating over y-boundaries.
 ///