Nauvis centric gameplay

This mod modifies recipes and game mechanics in such a way, that game remains challenging even after leaving nauvis. You can't just escape from nauvis and from the active threat that biters pose. Nauvis remains very cruicial for planetary exploration and other planets serve mostly as science-producing hubs and not permament bases. This mod aims mostly at bases of production chains (lava,plant,asteroid recipes), as that was the simplest target to make all items similarly affected by difficulty change.