Long over due update, but the project is alive again.

Patch notes

• Added new experimental environment (O'Neill cylinder)
• Graphics update to Arctic
• Small graphics update to Deep Ocean
• Lighting improvements in Desert
• Small optimization changes in Forest day
• Small optimization changes in Forest Night
• Small optimization changes to Forest winter
• Small behaviour change to monster
• Small graphic update to Mars
• Small graphic update to Moon
• Lighting improvement in Backyard