replace CastFunc by TypeCast. Correctly implemented Sympy interaction in TypeCast.

mypy.ini

src/pystencils/__init__.py

src/pystencils/backend/kernelcreation/freeze.py

src/pystencils/rng.py

src/pystencils/sympyextensions/__init__.py

src/pystencils/sympyextensions/math.py

src/pystencils/sympyextensions/typed_sympy.py

tests/frontend/test_address_of.py

tests/frontend/test_typed_sympy.py

tests/kernelcreation/test_spatial_counters.py

tests/nbackend/kernelcreation/test_freeze.py

tests/nbackend/transformations/test_ast_vectorizer.py

tests/runtime/test_data/datahandling_save_test.npz