Settle on class data format

[toonarmycaptain]

Currently format for .cld class data file is:

f'{student_name}, {avatar_filename}\n' for every student in the class. 

I think the class name should be within the file, but am open to suggestions on format.
JSON, pickle, etc.

What needs to be in the data is each student's name, together with at least the filename of the student's avatar.
Optionally, depending on what works best with the logic for passing info to graphs, would be the 'cleaned student name' which is the file name of the student's avatar, and including the relative file path with the filename of the avatar image.

[toonarmycaptain]

Have decided, in the absence of better advice, to convert to JSON for storing data.