Add 'runall' target.

The ‘runall’ target runs the rotation on different sizes:
- 512x512
- 1024x1024
- 3000x3000

rotation.cpp

@@ -604,7 +604,6 @@ int main(int argc, char* argv[])
   Image img(argv[1]);
   float average = 0.0;
   int i = 0;
-  cout << "Simple image" << endl;
   for (double rotation = 0; rotation < 360; rotation += step)
   {
     auto const before = chrono::high_resolution_clock::now();