Add index buffer

include/vulkanBase.hpp

@@ -9,7 +9,8 @@
  *
  */
 
-#pragma once
+#ifndef RSE_GRAPHICS_VULKANBASE_HPP
+#define RSE_GRAPHICS_VULKANBASE_HPP
 
 #include <cstdint>
 
@@ -37,4 +38,6 @@ void deinitVulkan();
  */
 void drawFrame();
 
-} /* namespace rse::graphics::vulkanbase */
+} /* namespace rse::graphics::vulkanbase */
+
+#endif /* RSE_GRAPHICS_VULKANBASE_HPP */