Add support for producing byte code objects and libraries

[mpickering]

GHC ticket: https://gitlab.haskell.org/ghc/ghc/-/issues/26298

GHC will be adding support for producing bytecode files and bytecode libraries in GHC-9.16.

This ticket tracks the cabal support for this feature.

[mpickering]

Cabal proposal: haskell/cabal-proposals#2