[BIG] Update 1

The first update for Voxelaxy is very very big. It brings a lot of new content and improvements.
Added:
- 3 game modes - Easy, Medium, Hardcore
 - In-game tutorial
 - Video Tutorial
 - Music
 - Splashscreen after hit
 - Scrolling handslots
 - Recycling
 - Version bar
 
Changed:
- Bottles of oxygen stacking from 1 to 5
 - Canteens of water stacking from 1 to 3 
 - Vegetables gives more hunger and thirsty points.
 - Reduced hunger and thirsty ratio.