Add Hugo's unfinished mandelbrot fractal demo

editor/mandelbrot.c6l

@@ -0,0 +1,34 @@
+;; Constants.
+width = 30
+height = 30
+size_pow_two = 16
+size = 4
+max_iteration = 100 ; How god the algorithm is
+
+for x_pos do width times
+    for y_pos do height times
+
+        is_inside_mandelbrot = 1
+        x = 0 ; x_math
+        y = 0 ; y_math
+
+        for i do max_iteration times
+        ;; because the set is so small we need to scale evrything up with scale.
+
+            ;; if x^2 + y^2 > 2^2 * size^2  then outside set.
+            if x * x + y * y > 4 * size_pow_two then
+                is_inside_mandelbrot = 0
+            else
+                ;; z = z^2 + c
+                ;; z = x + yi
+                ;; c = x_pos + i*y_pos
+                ;; z^2 = (x + yi)(x + yi) = x^2 -y^2 + 2yxi
+                ;; therefore: x = x^2 - y^2 + x_pos, y = 2xy + y_pos
+                x = x*x - y  *y + x_pos * size
+                y = 2 * x * y +y_pos * size
+            end
+        end
+        if is_inside_mandelbrot == 1 then
+            draw_pixel(x_pos,y_pos)
+        end
+end