Add write_double_precision run option for KKRhost and read_doubleprecision testflag for kkrimp to use doble precision kkrflex_green files instead of single precision files

Now:
- <set_cheby_nosoc>= T sets SOCSCL=0 but uses coupled spin channels (e.g. for noncollinear calculations without SOC)
- <decouple_spins_cheby>= T assumes that spin channels can be decoupled (collinear, without SOC)

Changes involving read_angles:
-- wunfiles: sets theta, phi and fixdir in t_params, new override with fix_nonco_angles, broadcasts values
-- main1a, main1b, main1c, writekkrflex: replaced call to read_angles with assignment from t_params

Changes involving fix_nonco_angles:
-- wunfiles: used to override fixdir
-- rhovalnew: now uses fixdir to decide if the local frame has to be corrected, new angles always computed
-- main1c: decides on nonco_angle_out.dat, now always write information on new angles

- cleaned up usage of nsymaxd
- added memory profiling in tbxccpljij.F90

automatic replacement of old RUNOPTIONS and TESTOPTIONS in source by new style (module runoptions.F90)

- Fixed some small bugs occurred during cleanup.