optimize case of sequential shared radius circle drawing by reusing the geometry by just offsetting it

apps/demos/platformer/player.c

@@ -255,6 +255,10 @@ static void drawdef(Player *player) {
     draw_circle((Vec2) { 256, 128 },
                 24,
                 (Color) { 255, 0, 0, 255 });
+
+    draw_circle((Vec2) { 304, 128 },
+                24,
+                (Color) { 255, 0, 0, 255 });
 }