Show statistics about number of users checked into tags by application branch #84
Description
A common statistic we need to know is how many of a given type of applicant showed up to an event. For instance, if the application branch types were Participant, Mentor, and Staff, then the output would be:
| branch | hackgt | workshop1 | meal1 |
|---|---|---|---|
| Participant | 400 | 100 | 250 |
| Mentor | 50 | 3 | 45 |
| Staff | 50 | 3 | 45 |
| Total | 500 | 106 | 340 |