Added scene, raytracer, pixel display and lights

src/scene.rs

@@ -0,0 +1,13 @@
+use crate::camera::Camera;
+use crate::light::Light;
+use crate::primitive::Primitive;
+use nalgebra::Vector3;
+
+pub struct Scene<'a> {
+    pub primitives: Vec<Box<dyn Primitive<'a>>>,
+    lights: Vec<Light>,
+    camera: Camera,
+    pub ambient_light: Vector3<f32>,
+}
+
+impl<'a> Scene<'a> {}