Add Event Planning Functionality to EFUSL2

[SunrypeSlim]

A DM could set an event, add a description and countdown, edit remotely (even away from the computer), and link in characters or players individually or by faction. You could even do a "what time do we want to do this?" poll right in the site.

Plenty of folks already use external sites for countdowns. This would just save a lot of hassle.