Merge branch 'develop' into merge_improved_chebychev_solver

.gitlab-ci.yml

cmake/source_list_KKRhost.txt

source/KKRhost/interpolate_poten.f90

source/KKRhost/main0.F90

source/KKRhost/main1c.F90

source/KKRhost/main2.F90

source/KKRhost/mixnocospin.f90

source/KKRhost/rhovalnew.F90

source/KKRhost/rinput13.F90

source/KKRhost/tmat_newsolver.F90

source/KKRhost/torque.f90

source/KKRhost/wunfiles.F90

source/common/bfield.f90

source/common/global_variables.F90

source/common/mympi.F90

source/common/spinorbit_ham.f90

source/voronoi/inc.geometry

tests/KKRhost/run_multi_node.py

tests/KKRhost/run_parallel.py

tests/KKRhost/run_serial.py