Pristine copy of Fractal from Bamboo

I don't know where the original file came from and it wasn't attributed
so we are taking it as-is for now.

See #4.
Complete port of Fractal

It's mostly embarrassingly parallel except for the output portion.

Include the original Bamboo task specification for comparison. Some
numbers in the original specification must be off since they look too
small for any serious performance measurements.

See #4.