Add medical administration record printing page

Each location will have a MAR (medical administration record) associated to it. We need a page for printing the MARs to each location.

The initial design can be found here https://github.com/NUBIC/halon/blob/master/docs/mockups/print-coordinator.png.

One difference from the mockup is that each location will have it's own MAR instead of a single MAR for every location and we need to show the last updated date for each file.