Build a reports/data dashboard

[hcientist]

Make a django view accessible only to users with a new role or admin that gives some numbers and then has a huge table (with fancy interactions) and an export button

the really wide table witll have columns about like this

Student_id
grade
instrument
teacher_id
assignment_id
title (of assignment)
created_at
updated_at
student_audio (melody & bassline)
student_response (connect)
students_notation (create)
tone
rhythm
expression
Graded
Piece
Part
Act category
Act type

[hcientist]

1. make the recording filename in the dashboard and csv export a link that requires backend login.
2. ensure the grades/self grades are in the export
3. what to do with composed score?
4. maybe throw 3-5 random numbers into it (to sort on in export)
5. judges should have a notes field

[hcientist]

depends on #14