update python bindings and BL run script

.../atmospheric_boundary_layer/atmospheric_boundary_layer.py

Python/atmospheric_boundary_layer/config.txt

pythonbindings/src/gpu/submodules/boundary_conditions.cpp

pythonbindings/src/gpu/submodules/parameter.cpp

pythonbindings/src/gpu/submodules/velocity_setter.cpp

src/gpu/GridGenerator/VelocitySetter/VelocitySetter.cpp