Started to work on collision detection in the EntityAbstract class.

Renamed
 + EntityInterface to Entity (much clearer when working with entities)


Added
 + Empty class for loading fonts
 + Ghost entity in Pacman (currently it loads the pacman spritesheet)


Urgent todo:
 + Remove the unnecessary setup call when working with sprite sheets and animations
 + Make support for scaling when rendering (the collision detection will not recognize scales as is now)
Started to write the reports