Stores rooms that can be used for events.
| Column Name | Type | Properties | Docu |
| roomid | string:64 | Primary-Key | Name of the room |
| capacity | int32 | Amount of people fitting into the room, zero means unlimited, this can be overridden per event. | |
| description | text | NULL-able | A short description of the room to help users. Currently not used extensively. |
| flags | string | NULL-able | filter flags: defines who can use this room for new events (ignored once it is attached to an event) |