Geo: Add verification state and edit registry table for project repos replication v2

What does this MR do and why?

This merge request creates a new database table called project_repository_states to track the verification status of project repositories for GitLab's Geo replication and edits another in the geo database, project_repository_registry, to add project_repository_id column.

Related issue: Geo: Enumerate project_repositories instead of ... (#546175)

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