Added missing files

Window_practice/res/shaders/Basic.shader

@@ -0,0 +1,20 @@
+#shader vertex
+#version 330 core
+
+layout(location = 0) in vec4 position;
+
+void main() {
+	gl_Position = position;
+};
+ 
+
+#shader fragment
+#version 330 core
+
+layout(location = 0) out vec4 color;
+
+uniform vec4 u_Color;
+
+void main() {
+	color = u_Color;
+};