R1:648fa2e1bcc6

Repositories - Move scripts/repository/reparse.php to bin/repository reparse

Summary:
Fixes T5966. Accomplishes a few things

- see title
- adds a force-autoclose flag and the plumbing for it
- removes references to some HarborMaster thing that used to key off commits and seems long dead, but forgotten :/

Test Plan:
ran a few commands. These first three had great success:

`./repository reparse --all FIRSTREPO --message --change --herald --owners`
`./repository reparse --all FIRSTREPO --message…