Add 3 new type of object: Sphere, Object and Intersect.

Add Intersect object as a way to report where a ray intersect another object and which one it is.
Add an Object base class for all object that can be rendered.
Add the Sphere object.

source/objects/object.cpp

@@ -0,0 +1,17 @@
+/*
+ *  DoRayMe - a quick and dirty Raytracer
+ *  Object implementation
+ *
+ *  Created by Manoël Trapier
+ *  Copyright (c) 2020 986-Studio.
+ *
+ */
+
+#include <ray.h>
+#include <object.h>
+#include <intersect.h>
+
+Intersect Object::intersect(Ray r)
+{
+    return Intersect();
+};