Calculator started and the SFML components are off in their own thing.

demos/calc.cpp

@@ -1,5 +1,15 @@
+#include "sfml/components.hpp"
+#include "sfml/sound.hpp"
+#include "sfml/shaders.hpp"
+#include "sfml/textures.hpp"
 #include "guecs.hpp"
 
+
 int main() {
-  return 0;
+  sound::init();
+  shaders::init();
+  textures::init();
+
+
+
 }