GUIText Update

SCRIPTS
*Added "LevelDisplay" - Shows current level
*Updated ComboText - Text is now placed based on screensize instead of
static placement
*Updated ScoreController - Same as ComboText
*Updated TimeController - Same as ComboText, also changed l1,l2,l3
booleans to a single int "level". Functionality is the same but works
better with "LevelDisplay".

GAME OBJECTS
*Added "LevelDisplay" and attached "LevelDisplay" script