add hdr display support

src/common/emulatorConfig.h

@@ -53,6 +53,7 @@ struct ConfigOptions {
 	PresentMode            present_mode                = PresentMode::Mailbox;
 	int32_t                gpu_index                   = -1;
 	bool                   fullscreen_enabled          = false;
+	bool                   hdr_enabled                 = false;
 	bool                   hide_cursor_enabled         = false;
 	bool                   splash_enabled              = true;
 	bool                   vr_enabled                  = false;
@@ -100,6 +101,7 @@ uint32_t GetControllerVibrationIntensity();
 PresentMode GetPresentMode();
 int32_t GetGpuIndex();
 bool     FullscreenEnabled();
+bool     HdrEnabled();
 bool     HideCursorEnabled();
 bool     VrEnabled();
 bool     AmdCpuEnabled();