more missing includes (#6398)

Here are more missing header files recently identified by building
without precompiled header support.

src/libslic3r/Arachne/SkeletalTrapezoidationGraph.cpp

@@ -2,6 +2,7 @@
 //CuraEngine is released under the terms of the AGPLv3 or higher.
 
 #include "SkeletalTrapezoidationGraph.hpp"
+#include "../Line.hpp"
 #include <ankerl/unordered_dense.h>
 
 

src/libslic3r/Geometry/MedialAxis.cpp

@@ -1,7 +1,9 @@
+#include <boost/log/trivial.hpp>
 #include "MedialAxis.hpp"
 
 #include "clipper.hpp"
 #include "VoronoiOffset.hpp"
+#include "../ClipperUtils.hpp"
 
 #ifdef SLIC3R_DEBUG
 namespace boost { namespace polygon {

src/libslic3r/Geometry/VoronoiUtilsCgal.cpp

@@ -1,3 +1,5 @@
+// Needed since the CGAL headers are not self-contained.
+#include <boost/next_prior.hpp>
 #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
 #include <CGAL/Arr_segment_traits_2.h>
 #include <CGAL/Surface_sweep_2_algorithms.h>

src/libslic3r/utils.cpp

@@ -54,6 +54,7 @@
 #include <boost/filesystem/path.hpp>
 #include <boost/nowide/fstream.hpp>
 #include <boost/nowide/convert.hpp>
+#include <boost/nowide/cstdio.hpp>
 
 // We are using quite an old TBB 2017 U7, which does not support global control API officially.
 // Before we update our build servers, let's use the old API, which is deprecated in up to date TBB.

src/slic3r/GUI/Preferences.cpp

@@ -16,6 +16,7 @@
 #include "Widgets/RadioBox.hpp"
 #include "Widgets/TextInput.hpp"
 #include <wx/listimpl.cpp>
+#include <wx/display.h>
 #include <map>
 
 #ifdef __WINDOWS__