[llvm] [llvm-readobj][COFF] Implement --coff-pseudoreloc in llvm-readobj to dump runtime pseudo-relocation records (PR #151816)

[James Henderson via llvm-commits]

https://github.com/jh7370 approved this pull request.

One minor suggestion, otherwise LGTM from my point of view, but please wait for @mstorsjo to approve too, to check the response to my suggestion (I'm off work most of next week, but don't want to hold this up).

https://github.com/llvm/llvm-project/pull/151816