Merge branch 'v2.0-dev' into fhennig/codegen-module

src/pystencils/backend/platforms/cuda.py

src/pystencils/backend/platforms/generic_gpu.py

src/pystencils/backend/platforms/platform.py

tests/kernelcreation/test_functions.py

tests/kernelcreation/test_iteration_slices.py