added shader

src/Application.hpp

@@ -1,6 +1,8 @@
 #pragma once
 
 #include <string>
+#include "Shader.hpp"
+#include "VertexArrayObject.hpp"
 
 struct GLFWwindow;
 
@@ -32,4 +34,7 @@ public:
 
 private:
 	GLFWwindow* window = nullptr;
+
+	Shader shader = nullptr;
+	VertexArrayObject model = nullptr;
 };