Add Game class
Merge pull request #2 from evrybiont/feature/add_game_class

Add Game class
Add class State
Add Intro class
Init Intro state
Show screen
Add FPS
Merge pull request #3 from evrybiont/feature/add_fps

Add FPS
Set intro font
Merge pull request #4 from evrybiont/feature/set_intro_font

Set intro font
Intro localization
Add applySurface
Make text fade-in-out
Merge pull request #6 from evrybiont/feature/fade-in-out

Make text fade-in-out
Add key kode enter(13) to intro state
Add Menu class
Init menu state
Move scope area to game
Merge pull request #8 from evrybiont/feature/init_menu

Feature/init menu
Add background to menu state