R1:46d735d312ca

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