Add ImGui

src/render/debugrender.h

@@ -2,6 +2,8 @@
 #define DEBUGRENDER_H
 
 #include <vector>
+
+#include "boundingbox.h"
 #include "render_shared.h"
 
 const int kMaxDebugVBSize = 1024 * 1024 * 2;
@@ -20,6 +22,7 @@ public:
 
 	void DrawAxis(const glm::vec3& vec);
 	void DrawLine(const glm::vec3& from, const glm::vec3& to, const glm::vec3& color);
+	void DrawBoundingBox(const BoundingBox& box, const glm::vec3& color);
 
 	void RenderFrame();