Assigning Volunteers to Events

[cycomachead]

I'm submitting a ..

• Bug Report
• Feature Request

Current behavior:
There are some roles are volunteers, but I am not sure how they work and there is not much UI.

Expected correct behavior:
I would like to be able to assign volunteers to events.
This would be the job of conference admins and volunteer coordinators.

• Volunteers is a user input field on an event
• A volunteer is a new role in EventUser
• A user can see which sessions they are volunteering for.

This is a really quick implementation:

[cycomachead]

Finished this up on my fork, for now:
snap-cloud/snapcon#52

There's 3 pages to edit:

• admins can add volunteers
• volunteers can see the events they're assigned to
• Volunteers are shown on the proposals/show page.

There's a bunch of future TODOs: Like preventing duplicate scheduling or supporting checking of volunteer attendance perhaps. I am unsure whether the events you're a volunteer for should be a second page or if the above version is good enough long term.