[split] Balektoy 3D designer

[tomangelo]

Hello
With adding more robots it's a bit complicated at the moment, because whole objects logic is currently hardcoded in-game, so adding new bots require both making new model (and textures, sounds etc., if it's required), but also changes in engine code. Of course we'll move to new models format, everything will be moved from sources and adding new bots wouldn't require digging in code.