[LLD][COFF] Display the size of all consumed inputs with /summary (take 2) (#157284)

When `/summary` is used, we now also display the cumulative size of all
input OBJ files, including those pulled from archives. Lazy OBJ files
that were not pulled in are not accounted for.

Also added separators between digit groups, to make the output more
bearable.

Example output:
```
> lld-link ... /summary
                                    Summary
--------------------------------------------------------------------------------
               4,958 Input OBJ files (expanded from all cmd-line inputs)
      46,715,790,512 Size of all consumed OBJ files (non-lazy), in bytes
                  42 PDB type server dependencies
                   0 Precomp OBJ dependencies
         293,910,064 Input type records
      16,931,361,928 Size of all input type records, in bytes
          11,201,549 Merged TPI records
           2,765,494 Merged IPI records
              38,649 Output PDB strings
          21,512,230 Global symbol records
          82,380,837 Module symbol records
             715,313 Public symbol records
```
I've skipped over the exact amounts for "Size of all consumed inputs
(non-lazy)" in the unit tests, since the sizes of OBJ files can
fluctuate between compilers.

_(this is a reopening of
https://github.com/llvm/llvm-project/pull/157279 which wasa committed by
mistake)_

0 files changed, 0 insertions, 0 deletions