Auto sync to new repos

[krsna-m]

This is a "nice to have" feature. When a new repo is created, the file syncer should detect and sync to it. This also goes for repos that are deleted, they should not be synced to and not require a PR for this change. In other words, this should be automated and not require manual intervention for which repos should be synced to or syncing should not be attempted on non-existent/deleted repos.