Reduce irrlicht_extrabloated.h includes in header files

src/gui/mainmenumanager.h

@@ -11,6 +11,12 @@
 #include <cassert>
 #include <list>
 
+#include "IGUIEnvironment.h"
+
+namespace irr::gui {
+	class IGUIStaticText;
+}
+
 class IGameCallback
 {
 public:

src/gui/modalMenu.h

@@ -4,8 +4,10 @@
 
 #pragma once
 
-#include "irrlichttypes_extrabloated.h"
+#include "IGUIElement.h"
+#include "irrlichttypes_bloated.h"
 #include "irr_ptr.h"
+
 #include "util/string.h"
 #ifdef __ANDROID__
 	#include <porting_android.h>

src/gui/touchscreeneditor.h

@@ -13,6 +13,7 @@
 class ISimpleTextureSource;
 namespace irr::gui
 {
+	class IGUIButton;
 	class IGUIImage;
 }