Update v.02 alpha

Update v.02 alpha:

-Added a timer bar for the combo instead of vauge animations

-Score is now affacted by the combo (larger combos, higher points per asteroid)

-Added combo increase animations

-Added windowed mode as default which can be changed in the settings

-Game now runs in the background (Dont fall asleep!)

Bug fixes:

-Combo now resets when a new game is started after returning to menu

Known bugs:

Physics and UI issues on lower resolutions