Gigantic update with menu

src/include/menu.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <stdbool.h>
+#include "imgui/imgui.h"
+#include "imgui/backends/imgui_impl_opengl2.h"
+#include "sdk.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+bool menu_init(void);
+void menu_shutdown(void);
+void menu_render(void);
+void menu_key_event(int keynum, int down);
+
+extern bool g_menu_open;
+extern bool g_imgui_initialized;
+extern ImGuiContext* g_imgui_context;
+
+#ifdef __cplusplus
+}
+#endif