Session completion status on Alyx for dynamic pipeline

[oliche]

With the dynamic pipeline we do not have a principled manner to check the completion of extractions.

We can prioritize working on the Alyx interface as it is easy:

In the session admin page

• [ ] Sort tasks by status
• [ ] Sort datasets by status

In the summarized session page

• [ ] Add task recap (n failed or similar indicator)
• [ ] add the sign-off keys recap (N over M)

In the reports page:

• [ ] Create a generic interface that gets the notes and plots
• [ ] Plot the QCs
• [ ] Add the sign-off keys Here we would probably start with non-training tasks