add hour/minute timestamp to incoming requests

[cydharrell]

This is important because of how the clock starts for the legally required response period. A request received by 5pm is counted as entered that day, while a request received at 7 is not counted as "in" until the next business day. Because the legal response time is in calendar days, counting a 7pm Friday request as "Friday" can lose a responding agency days of time and put them in rush mode or cause them to be out of compliance.

[mjumbewu]

Commits ef33cd7, 7a9b0ac, and 9c420e7 at least partially resolve this as I understand it. The times were being stored in the database, but they were not being displayed.

Those commits do not fix the fact that the due_date may still report a premature overdue status, because it's set relative to the date_created. The set_due_date method is going to have to become smarter to take into account the time of day that the request was made. For now, displaying the time at least allows users to spot check whether the request is actually overdue.