List in extended description

Deleted testship as it's no longer needed
Deleted testController as it's no longer needed
Deleted testship and enemyship art as they are no longer needed
Deleted comments that are no longer applicable
Refactored BasicShip -> EasyShip
Added MediumShip and HardShip
Added easyShip, mediumShip, hardShip dummy art
Changed current test spawning to spawn EasyShip, MediumShip, and
HardShip