29 - Create User (and children) classes

Context

We need a class to represent the user, and two children classes to represent attendees vs. organizers. These classes should store the necessary information of users in their private fields and have public accessors to those fields. Use the class diagram (in SDD) for reference and alter as needed.

TODO

• Create AttendeeUser class.
• Create OrganizerUser class.
• Create all associated methods.
• Peer review and merge