[clang] [Offload][NFC] Deduplicate CompressedOffloadBundle into llvm::object (PR #206741)

[via cfe-commits]

michaelselehov wrote:

This PR is part of a stack (merge bottom-up):

1. 👉 #206741 — [Offload][NFC] Deduplicate CompressedOffloadBundle into llvm::object
2. #206744 — [Offload] Make compressed offload bundle header little-endian
3. #206745 — [OffloadBundler] Bound compressed bundles by header size, not magic scan

https://github.com/llvm/llvm-project/pull/206741