Restructure files into directories for more clarity

CMakeLists.txt

@@ -6,7 +6,7 @@ set(CMAKE_CXX_STANDARD 17)
 find_package(OpenGL REQUIRED)
 find_package(glfw3 REQUIRED)
 
-add_executable(ecsgame glad.c OBJ_Loader.h Shader.cpp Shader.h main.cpp)
+add_executable(ecsgame Util/glad.c Util/OBJ_Loader.h Rendering/Shader.cpp Rendering/Shader.h main.cpp)
 
 include_directories(${OPENGL_INCLUDE_DIRS})
 

main.cpp

@@ -3,8 +3,8 @@
 
 #include <iostream>
 
-#include "Shader.h"
-#include "ECS.h"
+#include "Rendering/Shader.h"
+#include "ECS/ECS.h"
 
 using namespace ECS;