Initial data commit

Task/Classes/GLSL/classes.glsl

@@ -0,0 +1,19 @@
+struct Rectangle{
+    float width;
+    float height;
+};
+
+Rectangle new(float width,float height){
+    Rectangle self;
+    self.width = width;
+    self.height = height;
+    return self;
+}
+
+float area(Rectangle self){
+    return self.width*self.height;
+}
+
+float perimeter(Rectangle self){
+    return (self.width+self.height)*2.0;
+}