[olympic/modlib] Add ListBox to ImGui util

src/olympic/studio/modlib/include/studio/imguiutil.hpp

@@ -4,6 +4,8 @@
 
 #pragma once
 
+#include <functional>
+
 #include <imgui.h>
 
 #include <turbine/context.hpp>
@@ -59,6 +61,12 @@ bool FileComboBox(
 		ox::StringView fileExt,
 		size_t &selectedIdx) noexcept;
 
+bool ListBox(
+		ox::CStringView name,
+		std::function<ox::CStringView(size_t)> const&f,
+		size_t strCnt,
+		size_t &selIdx) noexcept;
+
 /**
  *
  * @param name