Merge master

.gitlab-ci.yml

CMakeLists.txt

apps/benchmarks/PhaseFieldAllenCahn/multiphase_codegen.py

apps/showcases/CMakeLists.txt

apps/showcases/PhaseFieldAllenCahn/CPU/multiphase_codegen.py

apps/showcases/PhaseFieldAllenCahn/GPU/multiphase_codegen.py

apps/showcases/PhaseFieldAllenCahn/GPU/taylor_bubble.py

apps/showcases/Thermocapillary/CMakeLists.txt

apps/showcases/Thermocapillary/InitializerFunctions.cpp

apps/showcases/Thermocapillary/InitializerFunctions.h

apps/showcases/Thermocapillary/PythonExports.cpp

apps/showcases/Thermocapillary/PythonExports.h

apps/showcases/Thermocapillary/benchmark.py

apps/showcases/Thermocapillary/droplet_migration2D.py

apps/showcases/Thermocapillary/droplet_migration3D.py

apps/showcases/Thermocapillary/microchannel2D.py

apps/showcases/Thermocapillary/microchannel3D.py

apps/showcases/Thermocapillary/thermocapillary.cpp

apps/showcases/Thermocapillary/thermocapillary_codegen.py

python/lbmpy_walberla/additional_data_handler.py