v1.3.3 - Asteroid fixes

This release changes the way asteroids are handled. It now doesnt save every asteroid generated, but only those edited. It also fixed an issue, where more than 10 generated belts, would crash the game, due to naming issues.

However i couldn't fix the ore diversity or ram problem, since these two seem to be problems caused by the game. I tested spawning procedural asteroids using the admin menu and everyone contained the same ores, nickel and ice. I will still try to fix those issues, but currently i will finish the GUI work for ingame world generator settigns.