Per student lab work book within one course

[mlsgit]

User Story

As a:

Lecturer and student

I want:

A lab work book where students can write-up their status and progress in the their lab exercises.

so that:

The students can document their work and that the lecturer can see the documentation (and potentially interact). Read/write by students, lecturer read-only, other students no-access (or selectable by the owning student).

Acceptance criteria:

• [ ]

Additional info:

[PatrickSkowronek]

related to #600