Add "--all" and an explicit "--force" flag to bin/harbormaster rebuild-log

Summary: Depends on D19136. Ref T13088. Since it's probably impractical to do all the migrations these changes imply during bin/storage upgrade, provide some support for performing them online.

Test Plan: Ran bin/harbormaster rebuild-log with --all, --id, and with and without --force.

Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam

Maniphest Tasks: T13088

Differential Revision: https://secure.phabricator.com/D19137