[licenses] Minor fixes/additions to classification & review:

1. Add identification stats to json and review spreadsheet.
2. Changed classification json from dict to list.
3. Improved review summary outputs.

Bug: 114260
Change-Id: I63270f42049c1abb84f171e4b646b4706f4db4ed
Reviewed-on: https://fuchsia-review.googlesource.com/c/sdk-integration/+/788995
Fuchsia-Auto-Submit: Yaar Schnitman <yaar@google.com>
Reviewed-by: Jiaming Li <lijiaming@google.com>
Commit-Queue: Yaar Schnitman <yaar@google.com>