[llvm] [llvm-debuginfo-analyzer] Add support for DWARF `DW_AT_byte_size` (PR #139110)

[Javier Lopez-Gomez via llvm-commits]

jalopezg-git wrote:

> Missing changes:
> 
>     * As the patch introduces the `--attribute=size` option, the `LVOptions::print(raw_ostream &OS)` function must be updated to include it. That function produces a 4 column print of all attributes.
> 
>     * The `cmdline.test` should be updated: `--attribute=<value>` to include the new option and `--select-scopes=<value>` to include `=Module` kind. (Missing from the DW_AT_module patch).

Done.  Thanks for the review!

https://github.com/llvm/llvm-project/pull/139110