Vic20

HiUxLife for the Unexpanded VIC-20

Colour MandleBrot for the Unexpanded VIC-20 (UxMand)

There were overflow errors in the original calculations which I resolved using some additional edge case tests and now I can generate a much better image.

In addition I speeded up the multiplication calculation by combining the shifted Multiplicand with the 32-bit result (which gets shifted on each pass). This means the entire image is generated in 4:09mins instead of 5:49mins.