Failed to generate world

@EricKlei After the update the same seed still cause failed to generate world error. (i tested on both beta branch and current live branch)

Due to the world traits this particular seed can't find enough space to place three Oil Reservoirs. It's normal for not all seeds to generate and we try our best to improve the worldgen rules so it happens less frequently. Whenever it happens it's automatically logged (respecting data settings) so we can determine if it's a common occurrence and fix it.

In the next update I've removed guarantees in a number of places (like it was before in the base game), which means there should be very few worldgen failures in the base game, but also means worldgen will be less predictable with traits mixed in.

I tested S-FRZ-530914111-0 and it works with my changes.