[Taiga] More UDAs

[AlexandrosVasileiou]

Could you please provide more UDAs for Taiga?

Here's a quick list of useful and missing UDAs:

• Project name
• Due date
• Status (kanban lists)
• Task type (Epic, User Story, Task, Issue)
• Sprint (which sprint the task/story belongs to)
• Users assigned

I marked with bold what I think is a greater priority. Please feel free to add more! :)

[ryneeverett]

triage: I don't think there would be any objections to this. It would be fairly trivial to implement.