Add the BYTEmark/nbench benchmark

[nfinit]

BYTE magazine's BYTEmark/Native Mode Benchmarks are an extremely portable and reasonably comprehensive collection of benchmarks that focus on CPU, FPU and memory performance in single-processor systems.

Uwe F. Mayer at the University of Utah hosts a Linux-friendly port of version 2 of these benchmarks on his website that would make a great addition to this package. Because it is a little more complex than the simple benchmarks packaged thus far, re-packaging it in a consistent and modular way will probably take some time.

[ermo]

Considering that I just (think I) ran the nbench benchmark, can't this issue be closed?

[nfinit]

It indeed can be!