per user trigger for USDU

As discussed in https://internet2.slack.com/archives/C7V0UQDJ4/p1643407164579049?thread_ts=1643399763.779279&cid=C7V0UQDJ4

Consider adding something to allow 3rd party to trigger usdu for a specific subject.

Chris Hyzer  [4:06 PM]
ok, if you can put an entry in a table, i can give you an example of a GSH loader script to update the member record, and maybe tell a provisioner to recalc the user... thoughts?you would put subjectId in table with a timestamp right?

Liam Hoekengabut we could probably do something that populated a message queue event, or maybe hit a web service, or put an entry in a table (like the incremental loader)