Update 2.38: Clouds rendering and more...

Dear gamers,

New update with clouds shadow rendering, optimisation and more...

Cheers,
Helios

- Add: Clouds shadow rendering
- Improve: AI choose better when attack a hostile faction
- Improve: Projectiles optimisation (Bullet, rocket...)
- Improve: Apocalypse events optimisation
- Improve: Animals optimisation
- Improve: Monsters optimisation
- Fix: Some AI errors pathfinding
- Fix: AI might not select main target correctly