add ovr platform sdk and test photo sharing

src/app_dialogs.cpp

@@ -9,6 +9,10 @@
 #include "node_changelog.h"
 #include "node_usermanual.h"
 
+#ifdef __QUEST__
+#include "oculus_vr.h"
+#endif
+
 std::shared_ptr<NodeProgressBar> App::show_progress(const std::string& title)
 {
     auto pb = std::make_shared<NodeProgressBar>();
@@ -426,13 +430,16 @@ void App::dialog_export(std::string ext)
     if (canvas)
     {
         // TODO: use picker
-        canvas->m_canvas->export_equirectangular(work_path + "/" + doc_name + ext, [this]{
+        auto path = work_path + "/" + doc_name + ext;
+        canvas->m_canvas->export_equirectangular(path, [this, path]{
 #if defined(__IOS__)
             message_box("Export Equirectangular", "Image exported to Photos");
 #elif defined(__OSX__)
             message_box("Export Equirectangular", "Image exported to Pictures/PanoPainter folder");
 #elif defined(_WIN32)
             message_box("Export Equirectangular", "Image exported to " + work_path);
+#elif defined(__QUEST__)
+            //auto result = ovr_Media_ShareToFacebook("Sharing from PanoPainter on Oculus Quest", path.c_str(), ovrMediaContentType_Photo);
 #endif
         });
     }