Bump boost version to 1.69.0

Fix Aegisub/Aegisub#93

src/colour_button.cpp

@@ -18,7 +18,7 @@
 
 #include "dialogs.h"
 
-#include <boost/gil/gil_all.hpp>
+#include <boost/gil.hpp>
 
 AGI_DEFINE_EVENT(EVT_COLOR, agi::Color);
 

src/subtitles_provider_libass.cpp

@@ -46,7 +46,7 @@
 #include <libaegisub/util.h>
 
 #include <atomic>
-#include <boost/gil/gil_all.hpp>
+#include <boost/gil.hpp>
 #include <memory>
 #include <mutex>
 

src/video_frame.cpp

@@ -16,7 +16,7 @@
 
 #include "video_frame.h"
 
-#include <boost/gil/gil_all.hpp>
+#include <boost/gil.hpp>
 #include <wx/image.h>
 
 namespace {

src/video_provider_dummy.cpp

@@ -45,7 +45,7 @@
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/filesystem/path.hpp>
 #include <libaegisub/format.h>
-#include <boost/gil/gil_all.hpp>
+#include <boost/gil.hpp>
 
 DummyVideoProvider::DummyVideoProvider(double fps, int frames, int width, int height, agi::Color colour, bool pattern)
 : framecount(frames)

vendor/boost

@@ -1 +1 @@
-Subproject commit 9ccd3390c8e9ef05f4cb681d15b2e14eac48886e
+Subproject commit 8d02ed770bbd22c7573b625657d8cc44aa19351a