Add renderstat to get some info about rendering.

source/shapes/group.cpp

@@ -9,13 +9,14 @@
 #include <tuple.h>
 #include <ray.h>
 #include <group.h>
-#include <cone.h>
 #include <math_helper.h>
+#include <renderstat.h>
 
 #define MIN_ALLOC (2)
 
 Group::Group() : Shape(SHAPE_GROUP)
 {
+    stats.addGroup();
     this->allocatedObjectCount = MIN_ALLOC;
     this->objectList = (Shape **)calloc(sizeof(Shape *), MIN_ALLOC);
     this->objectCount = 0;

source/shapes/triangle.cpp

@@ -10,9 +10,12 @@
 #include <shape.h>
 #include <triangle.h>
 #include <math_helper.h>
+#include <renderstat.h>
 
 Triangle::Triangle(Point p1, Point p2, Point p3) : Shape(SHAPE_TRIANGLE), p1(p1), p2(p2), p3(p3)
 {
+    stats.addTriangle();
+
     this->e1 = p2 - p1;
     this->e2 = p3 - p1;
     this->normal = e2.cross(e1).normalise();