us01: As an owner I want to be able to see a dashboard with basic business intelligence data because I want to know how much time is people waiting to be serviced.

[ernestomedinam]

• Dashboard is supposed to be graph based (charts!)

• people in line, mean time in line, mean service time, people served by age

[ernestomedinam]

Acceptance criteria:

• [x] I can see 4 charts, one for each set of data: people in line, mean time in line, mean service time, people served by age

• [x] Only the owner (admin user) can see this dashboard

• [ ] For each chart I need to be able to select the day for which data is shown