Add missing includes

Add missing <winnt.h> include in windows/lang_table.h
Add missing typedefs.h and rid.h include in godot_constraint_3d.h
Add missing <type_traits> include in iterable.h
Add missing forward declarations in rendering_shader_library.h

platform/windows/lang_table.h

@@ -30,6 +30,8 @@
 
 #pragma once
 
+#include <winnt.h>
+
 struct _WinLocale {
 	const char *locale;
 	int main_lang;