Added missing #includes

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%404242

dlib/image_transforms/image_pyramid.h

@@ -6,6 +6,7 @@
 #include "image_pyramid_abstract.h"
 #include "../pixel.h"
 #include "../array2d.h"
+#include "../geometry.h"
 
 namespace dlib
 {

dlib/image_transforms/image_pyramid_abstract.h

@@ -5,6 +5,7 @@
 
 #include "../pixel.h"
 #include "../array2d.h"
+#include "../geometry.h"
 
 namespace dlib
 {