Algorithm for calculating work targets

[Danwhy]

@stianr to provide the algorithm to be used for calculating how much a work a student will need to do for each assessment, based on date, priority and available time.

[stianr]

Hi @Danwhy, could you let me know what values the 'importance' variable for a given assessment can take?

[Danwhy]

@stianr I was thinking a value of 1 - 5, 5 being the highest importance

[stianr]

@Danwhy - makes sense. Thanks!