Add more advanced reporting features

[zachskaggs]

The community I'm currently organizing has users across the globe and meets regularly. It would be amazing if we could use the data from friendtime to see where the majority of our users were located to plan events according to the times they were most likely to be available. For this use case, a feature that could generate a table with a list of timezones existing on my server, and a count of the number of users in each timezone would be a really helpful, neat addition.

[KevinNovak]

Similar to #39

[KevinNovak]

I like this idea, this may come in a future update.