Added material usage in constructor

gui/include/layer.hpp

@@ -7,6 +7,7 @@
 #include <map>
 #include <shader.hpp>
 #include <framebuffer.hpp>
+#include <material.hpp>
 
 struct ObjectMetadata;
 
@@ -21,7 +22,7 @@ struct VertexData{
 
 class Layer{
 public:
-    Layer(std::string name, std::string filename, float zOffset);
+    Layer(std::string name, std::string filename, float zOffset, Material mat);
 
     void draw(glm::mat4 projection, glm::mat4 view, glm::mat4 model, int drawing_mode, int selected_index);