(WIP) Class diagram transfer

A start at transferring content from the class diagram into code.  Focuses on School/Course/Klass/Educator/Student type models.  

@Dantemss I'd appreciate a once over of this PR if you have a chance.
`short_name` here really is just that -- `name` might be "Electrical and Computer Engineering Signals and Systems", and `short_name` is "ELEC 301".