[llvm] [OFFLOAD] Add support to dump device images (PR #180545)

[Alex Duran via llvm-commits]

adurang wrote:

It's already quite a hassle to extract the SPIRV modules from the binary and making sure the device binary is consistent to what the RTL did taking into account the compilation options can change with the metadata, but that doesn't account for libraries that could also contain additional images (sometimes lodaded through dlopen). There are scenarios where doing what you suggest it just nightmarish when the RTL can straighforwardly just give you the final image.

Is there something here that you think is onerous on the RTL here? 

https://github.com/llvm/llvm-project/pull/180545