Replace kernel resource strings with real .cu source files (#48283)
Summary:
Convert the NVFUSER's runtime CUDA sources (under `.../jit/codegen/cuda/runtime`) to string literals, then include the headers with the generated literals.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48283
Reviewed By: mrshenli
Differential Revision: D25163362
Pulled By: ngimel
fbshipit-source-id: 4e6c181688ddea78ce6f3c754fee62fa6df16641
