[llvm] Add llvm-extract-bundle-entry to extend llvm-objcopy (PR #169386)

[David Salinas via llvm-commits]

david-salinas wrote:

@jh7370 can you take another look I've posted changes to address your comments.  There is one LIT test failing on Windows, I'll look at that and to resolve asap.  Thanks.

https://github.com/llvm/llvm-project/pull/169386