Move evolution factor reletion from distance as startup setting

[ldinc]

Hi! I with my friend 've tried different settings for making resources on map more sparsed. And try to build "real" railwayworld with minning point over 10k+ coords on mid game. But tier level of bitters destroy us (too low tech level =( ) And it will be great to have some settings for tuning evolution factor by distance!

Thx for your mod!