Bugfix for LO local Hamiltonian setup. Also made some variables allocatable to avoid OpenMP problems.

Added fully-fully noco code to potential generator and charge density part. Proper handling of spin dimension for density and potential still missing

Bugfixes for Vacuum part in spin-spiral calculation. Still not 100% correct as conribution of last k+g that are only present for one spin are missing. Might not be relevant at all since these are expected to be tiny.

Modified sorting routine to use secondary key and used this in several places to simplify sorting of LAPW, stars...

OMP DEFAULT(SHARED) lead to several variables beeing shared, though they
had to be private. Most importantly fct2

This compiler is a bit picky about some fortran features. In particular it does not like
dummy arguments to be used as dimensions before they are declared...