[Cleanup] Move include to .cc file

src/sand-wedge-data/mygeometry.cc

@@ -4,6 +4,12 @@
 
 #include <fstream>
 
+#ifdef HAVE_CAIROMM
+#include <cairomm/context.h>
+#include <cairomm/fontface.h>
+#include <cairomm/surface.h>
+#endif
+
 #include "mygeometry.hh"
 
 double MyGeometry::verticalProjection(LocalVector const &x) {

src/sand-wedge-data/mygeometry.hh

@@ -3,12 +3,6 @@
 
 #include <dune/common/fvector.hh>
 
-#ifdef HAVE_CAIROMM
-#include <cairomm/context.h>
-#include <cairomm/fontface.h>
-#include <cairomm/surface.h>
-#endif
-
 #include "midpoint.hh"
 
 namespace MyGeometry {