Merge branch 'HIP' into 'master'

CHANGELOG.md

CMakeLists.txt

apps/benchmarks/CMakeLists.txt

apps/benchmarks/CouetteFlow/CouetteFlow.cpp

apps/benchmarks/FlowAroundSphereCodeGen/CMakeLists.txt

...marks/FlowAroundSphereCodeGen/FlowAroundSphereCodeGen.cpp

apps/benchmarks/PhaseFieldAllenCahn/CMakeLists.txt

apps/benchmarks/PhaseFieldAllenCahn/benchmark_multiphase.cpp

apps/benchmarks/PoiseuilleChannel/PoiseuilleChannel.cpp

apps/benchmarks/SchaeferTurek/SchaeferTurek.cpp

apps/benchmarks/UniformGridCPU/UniformGridCPU.cpp

apps/benchmarks/UniformGridGPU/CMakeLists.txt

apps/benchmarks/UniformGridGPU/UniformGridGPU.cpp

apps/benchmarks/UniformGridGPU/old_ideas/UniformGridGPU.cpp

...s/UniformGridGPU/old_ideas/UniformGridGPU_Communication.h

...arks/UniformGridGPU/simulation_setup/benchmark_configs.py

apps/pythonmodule/CMakeLists.txt

apps/pythonmodule/PythonModule.cpp

apps/showcases/PhaseFieldAllenCahn/GPU/CMakeLists.txt

apps/showcases/PhaseFieldAllenCahn/GPU/multiphase.cpp