emacs: Replace dotted pair of changes with ChangeInfo entities.

Due to increasing info needs from Gerrit changes, we're replacing
the representation of changes as dotted pairs to the ChangeInfo entity
object in Gerrit's JSON response.

BUG=None
TEST=Evaluated, initialized values, and used with UI prototype.

Change-Id: I323fbf203abab1257987e60a7f68de88ca97f7c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2313437
Tested-by: Aaron Massey <aaronmassey@chromium.org>
Commit-Queue: Aaron Massey <aaronmassey@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
1 file changed