Added the inventory, item, and market class.  Almost done.
Added some more functionality
Adding random variance factor
Fixing a bug
Merge branch 'Temporary' into Lawrence
Modifying .equals()
Added ship class, getters and setters for other classes, and updated what Afiq needs to do for character.
Merge branch 'temporary' into Lawrence
Updating my inventory and market classes-lawrence
Merge origin/Lawrence
Olivia updated Universe controller and Merged Law branch