mv
* support lapacke
* don't use lapack, it's not faster
* threads
* add fast implementation of associated legendre polynomials
* add various stuff that was work and isn't really needed anymore
* adjust Makefile
* ignore one more executable
* add simple script for pfa
* use pfa as library or as stanalone program
* use just one single parameter struct
* add casimir_logdetD.c
* remove precision - it's useless here
* initialize T,Q
* use extra function to calculate log det D if n = 0
* calculate Drude
* make targets phony
* adjust make clean
* add fft
update .gitignore
* change API
* minor changes