Merge branch 'master' of i10git.cs.fau.de:walberla/walberla into LeesEdwards

apps/benchmarks/CouetteFlow/CMakeLists.txt

apps/benchmarks/FlowAroundSphereCodeGen/CMakeLists.txt

apps/benchmarks/PhaseFieldAllenCahn/CMakeLists.txt

apps/benchmarks/PoiseuilleChannel/CMakeLists.txt

apps/benchmarks/SchaeferTurek/CMakeLists.txt

apps/benchmarks/UniformGridGPU/CMakeLists.txt

apps/pythonmodule/CMakeLists.txt

apps/showcases/PhaseFieldAllenCahn/CPU/CMakeLists.txt

apps/showcases/PhaseFieldAllenCahn/GPU/CMakeLists.txt

apps/tutorials/pe/CMakeLists.txt

cmake/waLBerlaFunctions.cmake

python/pystencils_walberla/cmake_integration.py

src/CMakeLists.txt

src/blockforest/CMakeLists.txt

src/blockforest/communication/CMakeLists.txt

src/blockforest/loadbalancing/CMakeLists.txt

src/boundary/CMakeLists.txt

src/boundary/communication/CMakeLists.txt

src/communication/CMakeLists.txt

src/core/CMakeLists.txt