Extending to a faster algorithm

[fcharras]

This issue to let you know that I've re-used your strategy for wrapping the C code from Yuta Mori, applied to an enhanced version found here: https://github.com/kurpicz/sais-lite-lcp . This enhancement enables computing SA and LCP arrays simultaneously, and I have yet to find a segfault. According to wikipedia it was also the most efficient algorithm as of 2012.

My fork it there: https://github.com/fcharras/pyfischer

I've only ported the functions that meet my usecases, but the other functions could be ported too.