bugfix (probably, only it had affected to pdos mode for nspin=2). paralell mode mof job_band_nspin and job_tdos

See rdsigm2.F. and hqpe.sc.F Now sigm file contains isp.
Bug was in the possibility that we read
sigm for given q but with wrong spin index.

job_band_nspin1, job_band_nspin2, and job_tdos are for k-paralell.
But job_pdos for k-paralell is not yet implemented.
(probably not so difficult
job_band for FSMOM modes. (read Magfield and add it to evl). not tested yet.
Fermi surface file fermiup.bxsf generation for xcrysden. Type job_fermisurface, and read its explanation.

We usually have to use many number of k points.

I obsered that shown Fermi surface of Cu is not so symmetric
as long as we use smaller number of k points (even 20x20x20, it looks not so spherical).
--->Maybe because of xcrysden?