Score entry dialogue/logic

[toonarmycaptain]

I have a draft of the score entry logic in the repo - taking scores for a class to create a graph with.
The idea would be to loop through a class list and take an integer/float entry for each, with a preset max(and min?) score.
This needs to be completed and integrated.

The plan is to store the scores and parameters for each graph in a file within class_data/graph_data, so that a data set can be edited, reused, or a new graph created.
The format in which the data is saved is out of the scope of this issue (#16), but might be considered.

[toonarmycaptain]

GitMate.io thinks possibly related issues are #15 (Edit class dialogue and logic), #16 (Graph creation logic/dialogue), and #17 (Logic for image generation).