enable lua

main.cpp

@@ -5,6 +5,7 @@
 #include <iostream>
 #include <RmlUi/Core.h>
 #include <RmlUi/Debugger.h>
+#include <RmlUi/Lua.h>
 #include <RmlUi_Backend.h>
 #include <RmlUi_Include_Windows.h>
 
@@ -45,6 +46,7 @@ int main(const int argc, const char* argv[])
     Rml::SetSystemInterface(Backend::GetSystemInterface());
     Rml::SetRenderInterface(Backend::GetRenderInterface());
     Rml::Initialise();
+    Rml::Lua::Initialise();
 
     Rml::Context* context = Rml::CreateContext("main", Rml::Vector2i(window_width, window_height));
     if (!context)