Escape menu

*Added an escape menu to resume, return to main menu, or quit the game.
*Added option to toggle camera effect
*Removed bright Loading screen png that really does nothing
*Removed a couple models that increased the loading time
*Fixed a couple notes freezing the game

Note: On higher quality settings the textures for levels takes longer to load. Also, somtimes the when returning to the main menu through the escape menu the game might crash.