[llvm] [llvm-readobj] Support --symbol-table for COFF (PR #141552)

[Martin Storsjö via llvm-commits]

https://github.com/mstorsjo commented:

Looking very good overall, thanks! The PR and commit subject talks about `--symbol-table` though when this actually is `--string-table`.

https://github.com/llvm/llvm-project/pull/141552