Merge branch 'master' of gitlab.windenergy.dtu.dk:toolbox/WindEnergyToolbox

wetb/dlc/high_level.py

...les/res/dlc31_iec61400-1ed3/dlc31_wsp25_wdir000_s0000.int

wetb/fatigue_tools/fatigue.py

wetb/fatigue_tools/rainflowcounting/rainflowcount.py

wetb/gtsdf/__init__.py

wetb/hawc2/bladeinfo.py

wetb/hawc2/htc_contents.py

wetb/hawc2/htc_file.py

wetb/hawc2/pc_file.py

wetb/hawc2/st_file.py

wetb/hawc2/tests/test_AtTimeFile.py

wetb/hawc2/tests/test_files/at_time/test_rotor_name_null.dat

wetb/hawc2/tests/test_htc_file.py

wetb/signal/filters/_differentiation.py

wetb/utils/process_exec.py